diff --git a/_posts/2016-09-01-smart_pen.md b/_posts/2016-09-01-smart_pen.md
index 9a9ec42dc..545452a6a 100644
--- a/_posts/2016-09-01-smart_pen.md
+++ b/_posts/2016-09-01-smart_pen.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2016-09-01-voice_commander.md b/_posts/2016-09-01-voice_commander.md
index d963d2643..5fda7c769 100644
--- a/_posts/2016-09-01-voice_commander.md
+++ b/_posts/2016-09-01-voice_commander.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2016-09-01-vr_picture_book_maker.md b/_posts/2016-09-01-vr_picture_book_maker.md
index 540df55f3..c2e331c1f 100644
--- a/_posts/2016-09-01-vr_picture_book_maker.md
+++ b/_posts/2016-09-01-vr_picture_book_maker.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-anki_cookie.md b/_posts/2017-09-01-anki_cookie.md
index 486169f30..1fadb7468 100644
--- a/_posts/2017-09-01-anki_cookie.md
+++ b/_posts/2017-09-01-anki_cookie.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-draw_code.md b/_posts/2017-09-01-draw_code.md
index 445fe057e..7d020e6c9 100644
--- a/_posts/2017-09-01-draw_code.md
+++ b/_posts/2017-09-01-draw_code.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -124,7 +124,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='listenable_keyboard' title=''聞く'キーボード'>
+    <a href='listenable_keyboard' title='&#39;聞く&#39;キーボード'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2017-09-01-fall_in_friends.md b/_posts/2017-09-01-fall_in_friends.md
index 5c0acf331..baff87f47 100644
--- a/_posts/2017-09-01-fall_in_friends.md
+++ b/_posts/2017-09-01-fall_in_friends.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-listenable_keyboard.md b/_posts/2017-09-01-listenable_keyboard.md
index 6d06761db..c5d189c77 100644
--- a/_posts/2017-09-01-listenable_keyboard.md
+++ b/_posts/2017-09-01-listenable_keyboard.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-music_reminder.md b/_posts/2017-09-01-music_reminder.md
index 41d2d5e54..096f7ab0d 100644
--- a/_posts/2017-09-01-music_reminder.md
+++ b/_posts/2017-09-01-music_reminder.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-narratica.md b/_posts/2017-09-01-narratica.md
index 62333f8a7..0db7ece41 100644
--- a/_posts/2017-09-01-narratica.md
+++ b/_posts/2017-09-01-narratica.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-papa.md b/_posts/2017-09-01-papa.md
index 8327d9355..d42d86385 100644
--- a/_posts/2017-09-01-papa.md
+++ b/_posts/2017-09-01-papa.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-rakuraku_yomiyomi.md b/_posts/2017-09-01-rakuraku_yomiyomi.md
index 9a4a67350..b8622c560 100644
--- a/_posts/2017-09-01-rakuraku_yomiyomi.md
+++ b/_posts/2017-09-01-rakuraku_yomiyomi.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-savacs.md b/_posts/2017-09-01-savacs.md
index 4835c2a25..62e419c75 100644
--- a/_posts/2017-09-01-savacs.md
+++ b/_posts/2017-09-01-savacs.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2017-09-01-smile_iot.md b/_posts/2017-09-01-smile_iot.md
index 84bbdfa00..e71b156c3 100644
--- a/_posts/2017-09-01-smile_iot.md
+++ b/_posts/2017-09-01-smile_iot.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -112,7 +112,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='listenable_keyboard' title=''聞く'キーボード'>
+    <a href='listenable_keyboard' title='&#39;聞く&#39;キーボード'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2017-09-01-vamboo.md b/_posts/2017-09-01-vamboo.md
index e00b8c520..1ff4f1077 100644
--- a/_posts/2017-09-01-vamboo.md
+++ b/_posts/2017-09-01-vamboo.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-camera_translation.md b/_posts/2018-09-01-camera_translation.md
index 889cf053c..d6448e265 100644
--- a/_posts/2018-09-01-camera_translation.md
+++ b/_posts/2018-09-01-camera_translation.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-corkboard.md b/_posts/2018-09-01-corkboard.md
index be2bb22f0..c3be3c0ce 100644
--- a/_posts/2018-09-01-corkboard.md
+++ b/_posts/2018-09-01-corkboard.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-lets_eigo_puzzle.md b/_posts/2018-09-01-lets_eigo_puzzle.md
index d4a08cfc9..6b36a3ae4 100644
--- a/_posts/2018-09-01-lets_eigo_puzzle.md
+++ b/_posts/2018-09-01-lets_eigo_puzzle.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-life_watcher.md b/_posts/2018-09-01-life_watcher.md
index a40efc783..be9611235 100644
--- a/_posts/2018-09-01-life_watcher.md
+++ b/_posts/2018-09-01-life_watcher.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-memory_capsule.md b/_posts/2018-09-01-memory_capsule.md
index 0bb4ec73b..c275e15d2 100644
--- a/_posts/2018-09-01-memory_capsule.md
+++ b/_posts/2018-09-01-memory_capsule.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-robot_soccer.md b/_posts/2018-09-01-robot_soccer.md
index c0d8a7e12..a22b73309 100644
--- a/_posts/2018-09-01-robot_soccer.md
+++ b/_posts/2018-09-01-robot_soccer.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-smile_meeting_room.md b/_posts/2018-09-01-smile_meeting_room.md
index 216e5087c..7da064cc0 100644
--- a/_posts/2018-09-01-smile_meeting_room.md
+++ b/_posts/2018-09-01-smile_meeting_room.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -112,7 +112,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='lets_eigo_puzzle' title='Let'sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
+    <a href='lets_eigo_puzzle' title='Let&#39;sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2018-09-01-sound_in_the_forest.md b/_posts/2018-09-01-sound_in_the_forest.md
index 865d24315..0ff71be79 100644
--- a/_posts/2018-09-01-sound_in_the_forest.md
+++ b/_posts/2018-09-01-sound_in_the_forest.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-toubans.md b/_posts/2018-09-01-toubans.md
index 321084fee..b4de8e3de 100644
--- a/_posts/2018-09-01-toubans.md
+++ b/_posts/2018-09-01-toubans.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-touch_buy.md b/_posts/2018-09-01-touch_buy.md
index a0e5c9188..9f83ee4a6 100644
--- a/_posts/2018-09-01-touch_buy.md
+++ b/_posts/2018-09-01-touch_buy.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2018-09-01-utips.md b/_posts/2018-09-01-utips.md
index 96c733059..37d747a05 100644
--- a/_posts/2018-09-01-utips.md
+++ b/_posts/2018-09-01-utips.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -124,7 +124,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='lets_eigo_puzzle' title='Let'sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
+    <a href='lets_eigo_puzzle' title='Let&#39;sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2018-09-01-vreath.md b/_posts/2018-09-01-vreath.md
index 6ee8884dc..7c21b02ae 100644
--- a/_posts/2018-09-01-vreath.md
+++ b/_posts/2018-09-01-vreath.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-abecobe.md b/_posts/2019-09-01-abecobe.md
index b3bfc804c..7b154d572 100644
--- a/_posts/2019-09-01-abecobe.md
+++ b/_posts/2019-09-01-abecobe.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-amoyo.md b/_posts/2019-09-01-amoyo.md
index 40e09f412..6c99a6580 100644
--- a/_posts/2019-09-01-amoyo.md
+++ b/_posts/2019-09-01-amoyo.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-det_exploit.md b/_posts/2019-09-01-det_exploit.md
index 6f456f44f..a1a2d6e53 100644
--- a/_posts/2019-09-01-det_exploit.md
+++ b/_posts/2019-09-01-det_exploit.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-edge_guided_anime_characters_generation.md b/_posts/2019-09-01-edge_guided_anime_characters_generation.md
index bbd5fe3ff..072d34387 100644
--- a/_posts/2019-09-01-edge_guided_anime_characters_generation.md
+++ b/_posts/2019-09-01-edge_guided_anime_characters_generation.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-fresh_capsule.md b/_posts/2019-09-01-fresh_capsule.md
index ae98597d3..a87d038db 100644
--- a/_posts/2019-09-01-fresh_capsule.md
+++ b/_posts/2019-09-01-fresh_capsule.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-mallet.md b/_posts/2019-09-01-mallet.md
index 692675f85..d0449c770 100644
--- a/_posts/2019-09-01-mallet.md
+++ b/_posts/2019-09-01-mallet.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-manage_stock.md b/_posts/2019-09-01-manage_stock.md
index 6859718a3..16b6f1d7c 100644
--- a/_posts/2019-09-01-manage_stock.md
+++ b/_posts/2019-09-01-manage_stock.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-neulot.md b/_posts/2019-09-01-neulot.md
index 0eed44e75..87db5abe7 100644
--- a/_posts/2019-09-01-neulot.md
+++ b/_posts/2019-09-01-neulot.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-pirka.md b/_posts/2019-09-01-pirka.md
index 96ae14068..ffdafae86 100644
--- a/_posts/2019-09-01-pirka.md
+++ b/_posts/2019-09-01-pirka.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-relay_master.md b/_posts/2019-09-01-relay_master.md
index f8ef7ec3d..01ddcbf56 100644
--- a/_posts/2019-09-01-relay_master.md
+++ b/_posts/2019-09-01-relay_master.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-smart_vj.md b/_posts/2019-09-01-smart_vj.md
index 6077eb8ad..e04924a14 100644
--- a/_posts/2019-09-01-smart_vj.md
+++ b/_posts/2019-09-01-smart_vj.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-tea.md b/_posts/2019-09-01-tea.md
index 8e02388d1..18345776c 100644
--- a/_posts/2019-09-01-tea.md
+++ b/_posts/2019-09-01-tea.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2019-09-01-virtual_presents.md b/_posts/2019-09-01-virtual_presents.md
index 8a11ab630..c34e02523 100644
--- a/_posts/2019-09-01-virtual_presents.md
+++ b/_posts/2019-09-01-virtual_presents.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-align.md b/_posts/2020-09-01-align.md
index e43fb0637..8e4d338b8 100644
--- a/_posts/2020-09-01-align.md
+++ b/_posts/2020-09-01-align.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-brush_talk.md b/_posts/2020-09-01-brush_talk.md
index 83773898a..ca306794a 100644
--- a/_posts/2020-09-01-brush_talk.md
+++ b/_posts/2020-09-01-brush_talk.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-color_overlap.md b/_posts/2020-09-01-color_overlap.md
index 9ca1094b0..b7da62de1 100644
--- a/_posts/2020-09-01-color_overlap.md
+++ b/_posts/2020-09-01-color_overlap.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-critica.md b/_posts/2020-09-01-critica.md
index 8b900cc04..fb942f37c 100644
--- a/_posts/2020-09-01-critica.md
+++ b/_posts/2020-09-01-critica.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-flight_fit_vr.md b/_posts/2020-09-01-flight_fit_vr.md
index 3f337fb95..32791068b 100644
--- a/_posts/2020-09-01-flight_fit_vr.md
+++ b/_posts/2020-09-01-flight_fit_vr.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-force_book.md b/_posts/2020-09-01-force_book.md
index d20f1755e..f660ede1c 100644
--- a/_posts/2020-09-01-force_book.md
+++ b/_posts/2020-09-01-force_book.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-glider_gun.md b/_posts/2020-09-01-glider_gun.md
index d9afb5c3c..b755b6461 100644
--- a/_posts/2020-09-01-glider_gun.md
+++ b/_posts/2020-09-01-glider_gun.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-guinfra.md b/_posts/2020-09-01-guinfra.md
index 35ecf7db4..abfb7b2f3 100644
--- a/_posts/2020-09-01-guinfra.md
+++ b/_posts/2020-09-01-guinfra.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-levo.md b/_posts/2020-09-01-levo.md
index c4577897b..65d2a105c 100644
--- a/_posts/2020-09-01-levo.md
+++ b/_posts/2020-09-01-levo.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-mer.md b/_posts/2020-09-01-mer.md
index 18c3a8d38..2124b1307 100644
--- a/_posts/2020-09-01-mer.md
+++ b/_posts/2020-09-01-mer.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -112,7 +112,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='visible' title='Visible ─ Webアクセシビリティー診断 & 修正提案ツール'>
+    <a href='visible' title='Visible ─ Webアクセシビリティー診断 &amp; 修正提案ツール'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2020-09-01-poet.md b/_posts/2020-09-01-poet.md
index a8e2bd4b9..415dfbe0c 100644
--- a/_posts/2020-09-01-poet.md
+++ b/_posts/2020-09-01-poet.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -124,7 +124,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='visible' title='Visible ─ Webアクセシビリティー診断 & 修正提案ツール'>
+    <a href='visible' title='Visible ─ Webアクセシビリティー診断 &amp; 修正提案ツール'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2020-09-01-rocat.md b/_posts/2020-09-01-rocat.md
index 784fa2156..92e23a946 100644
--- a/_posts/2020-09-01-rocat.md
+++ b/_posts/2020-09-01-rocat.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-skimer.md b/_posts/2020-09-01-skimer.md
index 1d34898e2..2ea8b5a7c 100644
--- a/_posts/2020-09-01-skimer.md
+++ b/_posts/2020-09-01-skimer.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-spaghetian.md b/_posts/2020-09-01-spaghetian.md
index fbbb4ff12..da35bc761 100644
--- a/_posts/2020-09-01-spaghetian.md
+++ b/_posts/2020-09-01-spaghetian.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2020-09-01-visible.md b/_posts/2020-09-01-visible.md
index 474508396..35523e1cf 100644
--- a/_posts/2020-09-01-visible.md
+++ b/_posts/2020-09-01-visible.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-anyget.md b/_posts/2021-09-01-anyget.md
index de02bd981..2c7dc7455 100644
--- a/_posts/2021-09-01-anyget.md
+++ b/_posts/2021-09-01-anyget.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-augment.md b/_posts/2021-09-01-augment.md
index 23b908788..cdd7283bb 100644
--- a/_posts/2021-09-01-augment.md
+++ b/_posts/2021-09-01-augment.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -124,7 +124,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='haniwa' title='Haniwa - 家族間タスク共有&報酬提供アプリ'>
+    <a href='haniwa' title='Haniwa - 家族間タスク共有&amp;報酬提供アプリ'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2021-09-01-birds_eye.md b/_posts/2021-09-01-birds_eye.md
index f904bf7f8..b10d7a1b1 100644
--- a/_posts/2021-09-01-birds_eye.md
+++ b/_posts/2021-09-01-birds_eye.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-curepathy.md b/_posts/2021-09-01-curepathy.md
index a83a356c1..b147aa05f 100644
--- a/_posts/2021-09-01-curepathy.md
+++ b/_posts/2021-09-01-curepathy.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-cybotanic.md b/_posts/2021-09-01-cybotanic.md
index 424f6f8c3..81c4f608b 100644
--- a/_posts/2021-09-01-cybotanic.md
+++ b/_posts/2021-09-01-cybotanic.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-haniwa.md b/_posts/2021-09-01-haniwa.md
index 42086a829..ac885ef8f 100644
--- a/_posts/2021-09-01-haniwa.md
+++ b/_posts/2021-09-01-haniwa.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-killin_engine.md b/_posts/2021-09-01-killin_engine.md
index 7d46ab4ba..4c3404b1c 100644
--- a/_posts/2021-09-01-killin_engine.md
+++ b/_posts/2021-09-01-killin_engine.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -112,7 +112,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='anyget' title='>>Anyget/掲示板形式小説執筆支援ツール'>
+    <a href='anyget' title='&gt;&gt;Anyget/掲示板形式小説執筆支援ツール'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2021-09-01-mark_sdgs.md b/_posts/2021-09-01-mark_sdgs.md
index 847f0c825..40b8b5850 100644
--- a/_posts/2021-09-01-mark_sdgs.md
+++ b/_posts/2021-09-01-mark_sdgs.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-mock_up.md b/_posts/2021-09-01-mock_up.md
index df2471c64..e552df943 100644
--- a/_posts/2021-09-01-mock_up.md
+++ b/_posts/2021-09-01-mock_up.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-puguette.md b/_posts/2021-09-01-puguette.md
index 0e9ec9176..d41fbde3b 100644
--- a/_posts/2021-09-01-puguette.md
+++ b/_posts/2021-09-01-puguette.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -112,7 +112,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='haniwa' title='Haniwa - 家族間タスク共有&報酬提供アプリ'>
+    <a href='haniwa' title='Haniwa - 家族間タスク共有&amp;報酬提供アプリ'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
@@ -124,7 +124,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='anyget' title='>>Anyget/掲示板形式小説執筆支援ツール'>
+    <a href='anyget' title='&gt;&gt;Anyget/掲示板形式小説執筆支援ツール'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/2021-09-01-researcheck.md b/_posts/2021-09-01-researcheck.md
index 0347f87dc..107f90f37 100644
--- a/_posts/2021-09-01-researcheck.md
+++ b/_posts/2021-09-01-researcheck.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-telport.md b/_posts/2021-09-01-telport.md
index 2bb31ac11..f72473519 100644
--- a/_posts/2021-09-01-telport.md
+++ b/_posts/2021-09-01-telport.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-vr_sandbox.md b/_posts/2021-09-01-vr_sandbox.md
index d6d46197e..e163b5d72 100644
--- a/_posts/2021-09-01-vr_sandbox.md
+++ b/_posts/2021-09-01-vr_sandbox.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2021-09-01-web_koten.md b/_posts/2021-09-01-web_koten.md
index d1d874f03..20317b3b6 100644
--- a/_posts/2021-09-01-web_koten.md
+++ b/_posts/2021-09-01-web_koten.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-craftere_post.md b/_posts/2022-09-01-craftere_post.md
index 075249a58..d10590cca 100644
--- a/_posts/2022-09-01-craftere_post.md
+++ b/_posts/2022-09-01-craftere_post.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-fluxel.md b/_posts/2022-09-01-fluxel.md
index 136185664..c043c9f2a 100644
--- a/_posts/2022-09-01-fluxel.md
+++ b/_posts/2022-09-01-fluxel.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-hak.md b/_posts/2022-09-01-hak.md
index 2ccc79eb0..554a8edfd 100644
--- a/_posts/2022-09-01-hak.md
+++ b/_posts/2022-09-01-hak.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-michishirube.md b/_posts/2022-09-01-michishirube.md
index 2cf49389c..ee154395c 100644
--- a/_posts/2022-09-01-michishirube.md
+++ b/_posts/2022-09-01-michishirube.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-motion_rapid.md b/_posts/2022-09-01-motion_rapid.md
index 6187aead5..f48275d26 100644
--- a/_posts/2022-09-01-motion_rapid.md
+++ b/_posts/2022-09-01-motion_rapid.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-noxicel.md b/_posts/2022-09-01-noxicel.md
index b8eae3e0a..5dea6a9e3 100644
--- a/_posts/2022-09-01-noxicel.md
+++ b/_posts/2022-09-01-noxicel.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-nu_desktop.md b/_posts/2022-09-01-nu_desktop.md
index be9e67d4e..665681a84 100644
--- a/_posts/2022-09-01-nu_desktop.md
+++ b/_posts/2022-09-01-nu_desktop.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-r-order.md b/_posts/2022-09-01-r-order.md
index b97cffce0..c2d6b157f 100644
--- a/_posts/2022-09-01-r-order.md
+++ b/_posts/2022-09-01-r-order.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-sanitas.md b/_posts/2022-09-01-sanitas.md
index 159a40b0d..029124441 100644
--- a/_posts/2022-09-01-sanitas.md
+++ b/_posts/2022-09-01-sanitas.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-scairecrow.md b/_posts/2022-09-01-scairecrow.md
index dd4de1676..ba2ff10e4 100644
--- a/_posts/2022-09-01-scairecrow.md
+++ b/_posts/2022-09-01-scairecrow.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2022-09-01-study_rec.md b/_posts/2022-09-01-study_rec.md
index e3e9de474..2029cad3b 100644
--- a/_posts/2022-09-01-study_rec.md
+++ b/_posts/2022-09-01-study_rec.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-3d_printed_brushless_motor.md b/_posts/2023-09-01-3d_printed_brushless_motor.md
index ffd83209d..a75be320f 100644
--- a/_posts/2023-09-01-3d_printed_brushless_motor.md
+++ b/_posts/2023-09-01-3d_printed_brushless_motor.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-a9n.md b/_posts/2023-09-01-a9n.md
index 4be5ffad2..e5663d6dc 100644
--- a/_posts/2023-09-01-a9n.md
+++ b/_posts/2023-09-01-a9n.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-ai_4koma_maker.md b/_posts/2023-09-01-ai_4koma_maker.md
index 8466c3ab1..1674e9ab6 100644
--- a/_posts/2023-09-01-ai_4koma_maker.md
+++ b/_posts/2023-09-01-ai_4koma_maker.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-bakusoku_agv.md b/_posts/2023-09-01-bakusoku_agv.md
index 310593b4e..eefa25dc1 100644
--- a/_posts/2023-09-01-bakusoku_agv.md
+++ b/_posts/2023-09-01-bakusoku_agv.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-be_free.md b/_posts/2023-09-01-be_free.md
index 1cb0ca6a3..926e2b102 100644
--- a/_posts/2023-09-01-be_free.md
+++ b/_posts/2023-09-01-be_free.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-capitalens.md b/_posts/2023-09-01-capitalens.md
index d2be77df5..4d3db8cc2 100644
--- a/_posts/2023-09-01-capitalens.md
+++ b/_posts/2023-09-01-capitalens.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-code_museum.md b/_posts/2023-09-01-code_museum.md
index 379b66647..c75cb403b 100644
--- a/_posts/2023-09-01-code_museum.md
+++ b/_posts/2023-09-01-code_museum.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-hato.md b/_posts/2023-09-01-hato.md
index d6ee71898..769954f3c 100644
--- a/_posts/2023-09-01-hato.md
+++ b/_posts/2023-09-01-hato.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-lescued.md b/_posts/2023-09-01-lescued.md
index ea37f3d10..738b425fc 100644
--- a/_posts/2023-09-01-lescued.md
+++ b/_posts/2023-09-01-lescued.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-motion_simulator.md b/_posts/2023-09-01-motion_simulator.md
index df838f511..af55bc2be 100644
--- a/_posts/2023-09-01-motion_simulator.md
+++ b/_posts/2023-09-01-motion_simulator.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-niwangojs.md b/_posts/2023-09-01-niwangojs.md
index cab72412e..c4ad7c2da 100644
--- a/_posts/2023-09-01-niwangojs.md
+++ b/_posts/2023-09-01-niwangojs.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-stask.md b/_posts/2023-09-01-stask.md
index 66059ae8e..70a5d689d 100644
--- a/_posts/2023-09-01-stask.md
+++ b/_posts/2023-09-01-stask.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-umeda_sansei_kai.md b/_posts/2023-09-01-umeda_sansei_kai.md
index 859f70811..568b481ec 100644
--- a/_posts/2023-09-01-umeda_sansei_kai.md
+++ b/_posts/2023-09-01-umeda_sansei_kai.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2023-09-01-voice_genius.md b/_posts/2023-09-01-voice_genius.md
index edabd756e..9494b1a61 100644
--- a/_posts/2023-09-01-voice_genius.md
+++ b/_posts/2023-09-01-voice_genius.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-ai_study.md b/_posts/2024-09-01-ai_study.md
index 26326c513..6c77eb66a 100644
--- a/_posts/2024-09-01-ai_study.md
+++ b/_posts/2024-09-01-ai_study.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-bento_color.md b/_posts/2024-09-01-bento_color.md
index a9bbbd98d..1813a5b47 100644
--- a/_posts/2024-09-01-bento_color.md
+++ b/_posts/2024-09-01-bento_color.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-co_encoder.md b/_posts/2024-09-01-co_encoder.md
index 9057284e6..0ddfdfa78 100644
--- a/_posts/2024-09-01-co_encoder.md
+++ b/_posts/2024-09-01-co_encoder.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-digikan.md b/_posts/2024-09-01-digikan.md
index 482f422fc..9da8317e7 100644
--- a/_posts/2024-09-01-digikan.md
+++ b/_posts/2024-09-01-digikan.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-fairy_guide.md b/_posts/2024-09-01-fairy_guide.md
index 1626769ab..d2ecd5289 100644
--- a/_posts/2024-09-01-fairy_guide.md
+++ b/_posts/2024-09-01-fairy_guide.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-inton.md b/_posts/2024-09-01-inton.md
index 4f7d656e4..70cef1346 100644
--- a/_posts/2024-09-01-inton.md
+++ b/_posts/2024-09-01-inton.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-jellyfish_alert.md b/_posts/2024-09-01-jellyfish_alert.md
index 072de7fa2..88a004087 100644
--- a/_posts/2024-09-01-jellyfish_alert.md
+++ b/_posts/2024-09-01-jellyfish_alert.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-maglev_sphere_mobility.md b/_posts/2024-09-01-maglev_sphere_mobility.md
index 38cd9a9a4..1c4dcca68 100644
--- a/_posts/2024-09-01-maglev_sphere_mobility.md
+++ b/_posts/2024-09-01-maglev_sphere_mobility.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-mimamori_compass.md b/_posts/2024-09-01-mimamori_compass.md
index c6bead598..2f7269268 100644
--- a/_posts/2024-09-01-mimamori_compass.md
+++ b/_posts/2024-09-01-mimamori_compass.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-mimic.md b/_posts/2024-09-01-mimic.md
index 43e1534d3..4b86e4208 100644
--- a/_posts/2024-09-01-mimic.md
+++ b/_posts/2024-09-01-mimic.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-picto_plate.md b/_posts/2024-09-01-picto_plate.md
index 793419553..83ab24ccd 100644
--- a/_posts/2024-09-01-picto_plate.md
+++ b/_posts/2024-09-01-picto_plate.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-qwet.md b/_posts/2024-09-01-qwet.md
index a40fec5fa..275bc3f93 100644
--- a/_posts/2024-09-01-qwet.md
+++ b/_posts/2024-09-01-qwet.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-reproduce.md b/_posts/2024-09-01-reproduce.md
index b8065e734..9ea41ae1f 100644
--- a/_posts/2024-09-01-reproduce.md
+++ b/_posts/2024-09-01-reproduce.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-sakubun_otasuke.md b/_posts/2024-09-01-sakubun_otasuke.md
index a1ee125b6..a2b1f5e4e 100644
--- a/_posts/2024-09-01-sakubun_otasuke.md
+++ b/_posts/2024-09-01-sakubun_otasuke.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-swaq.md b/_posts/2024-09-01-swaq.md
index a1adad59c..de26fbb90 100644
--- a/_posts/2024-09-01-swaq.md
+++ b/_posts/2024-09-01-swaq.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-tactica_note.md b/_posts/2024-09-01-tactica_note.md
index 445b63f6d..e8931d404 100644
--- a/_posts/2024-09-01-tactica_note.md
+++ b/_posts/2024-09-01-tactica_note.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/2024-09-01-tutoriallm.md b/_posts/2024-09-01-tutoriallm.md
index 03bc018f2..d4f471a49 100644
--- a/_posts/2024-09-01-tutoriallm.md
+++ b/_posts/2024-09-01-tutoriallm.md
@@ -65,7 +65,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2016-09-01-smart_pen.md b/_posts/english/2016-09-01-smart_pen.md
index 1d1a8256a..0380fa236 100644
--- a/_posts/english/2016-09-01-smart_pen.md
+++ b/_posts/english/2016-09-01-smart_pen.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2016-09-01-voice_commander.md b/_posts/english/2016-09-01-voice_commander.md
index f29b98cd4..548f94e4e 100644
--- a/_posts/english/2016-09-01-voice_commander.md
+++ b/_posts/english/2016-09-01-voice_commander.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2016-09-01-vr_picture_book_maker.md b/_posts/english/2016-09-01-vr_picture_book_maker.md
index bd01dbf40..0195fd8b9 100644
--- a/_posts/english/2016-09-01-vr_picture_book_maker.md
+++ b/_posts/english/2016-09-01-vr_picture_book_maker.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-anki_cookie.md b/_posts/english/2017-09-01-anki_cookie.md
index cca131eb3..3388472af 100644
--- a/_posts/english/2017-09-01-anki_cookie.md
+++ b/_posts/english/2017-09-01-anki_cookie.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-draw_code.md b/_posts/english/2017-09-01-draw_code.md
index 96d0087ae..6a0630ca3 100644
--- a/_posts/english/2017-09-01-draw_code.md
+++ b/_posts/english/2017-09-01-draw_code.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -126,7 +126,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='listenable_keyboard' title=''聞く'キーボード'>
+    <a href='listenable_keyboard' title='&#39;聞く&#39;キーボード'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2017-09-01-fall_in_friends.md b/_posts/english/2017-09-01-fall_in_friends.md
index 42314f681..2301ab1b7 100644
--- a/_posts/english/2017-09-01-fall_in_friends.md
+++ b/_posts/english/2017-09-01-fall_in_friends.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-listenable_keyboard.md b/_posts/english/2017-09-01-listenable_keyboard.md
index 743ad6ced..2269f4e31 100644
--- a/_posts/english/2017-09-01-listenable_keyboard.md
+++ b/_posts/english/2017-09-01-listenable_keyboard.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-music_reminder.md b/_posts/english/2017-09-01-music_reminder.md
index 9a91edb8b..d128fce38 100644
--- a/_posts/english/2017-09-01-music_reminder.md
+++ b/_posts/english/2017-09-01-music_reminder.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-narratica.md b/_posts/english/2017-09-01-narratica.md
index 22c7dbf68..425c24941 100644
--- a/_posts/english/2017-09-01-narratica.md
+++ b/_posts/english/2017-09-01-narratica.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-papa.md b/_posts/english/2017-09-01-papa.md
index 0e24ad17d..830e4dd67 100644
--- a/_posts/english/2017-09-01-papa.md
+++ b/_posts/english/2017-09-01-papa.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-rakuraku_yomiyomi.md b/_posts/english/2017-09-01-rakuraku_yomiyomi.md
index 345f51260..51e5ead1a 100644
--- a/_posts/english/2017-09-01-rakuraku_yomiyomi.md
+++ b/_posts/english/2017-09-01-rakuraku_yomiyomi.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-savacs.md b/_posts/english/2017-09-01-savacs.md
index 7533b7f7e..72047acfb 100644
--- a/_posts/english/2017-09-01-savacs.md
+++ b/_posts/english/2017-09-01-savacs.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2017-09-01-smile_iot.md b/_posts/english/2017-09-01-smile_iot.md
index 12f4ae6ff..edeec55c3 100644
--- a/_posts/english/2017-09-01-smile_iot.md
+++ b/_posts/english/2017-09-01-smile_iot.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -114,7 +114,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='listenable_keyboard' title=''聞く'キーボード'>
+    <a href='listenable_keyboard' title='&#39;聞く&#39;キーボード'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2017-09-01-vamboo.md b/_posts/english/2017-09-01-vamboo.md
index 7100bf436..b8b0e8282 100644
--- a/_posts/english/2017-09-01-vamboo.md
+++ b/_posts/english/2017-09-01-vamboo.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-camera_translation.md b/_posts/english/2018-09-01-camera_translation.md
index c9f556603..65f2a8042 100644
--- a/_posts/english/2018-09-01-camera_translation.md
+++ b/_posts/english/2018-09-01-camera_translation.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-corkboard.md b/_posts/english/2018-09-01-corkboard.md
index 554bc7cbe..631b7b512 100644
--- a/_posts/english/2018-09-01-corkboard.md
+++ b/_posts/english/2018-09-01-corkboard.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-lets_eigo_puzzle.md b/_posts/english/2018-09-01-lets_eigo_puzzle.md
index 4ece9ab1d..4d735b644 100644
--- a/_posts/english/2018-09-01-lets_eigo_puzzle.md
+++ b/_posts/english/2018-09-01-lets_eigo_puzzle.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-life_watcher.md b/_posts/english/2018-09-01-life_watcher.md
index 2c37bc62b..c3d210acc 100644
--- a/_posts/english/2018-09-01-life_watcher.md
+++ b/_posts/english/2018-09-01-life_watcher.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-memory_capsule.md b/_posts/english/2018-09-01-memory_capsule.md
index eb9d79c71..780c08c1a 100644
--- a/_posts/english/2018-09-01-memory_capsule.md
+++ b/_posts/english/2018-09-01-memory_capsule.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-robot_soccer.md b/_posts/english/2018-09-01-robot_soccer.md
index d6c68c023..b18ac2916 100644
--- a/_posts/english/2018-09-01-robot_soccer.md
+++ b/_posts/english/2018-09-01-robot_soccer.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-smile_meeting_room.md b/_posts/english/2018-09-01-smile_meeting_room.md
index ba4e90331..26eaf97ea 100644
--- a/_posts/english/2018-09-01-smile_meeting_room.md
+++ b/_posts/english/2018-09-01-smile_meeting_room.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -114,7 +114,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='lets_eigo_puzzle' title='Let'sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
+    <a href='lets_eigo_puzzle' title='Let&#39;sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2018-09-01-sound_in_the_forest.md b/_posts/english/2018-09-01-sound_in_the_forest.md
index d0ea80dfa..7b26b9b14 100644
--- a/_posts/english/2018-09-01-sound_in_the_forest.md
+++ b/_posts/english/2018-09-01-sound_in_the_forest.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-toubans.md b/_posts/english/2018-09-01-toubans.md
index a52128246..189c0952b 100644
--- a/_posts/english/2018-09-01-toubans.md
+++ b/_posts/english/2018-09-01-toubans.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-touch_buy.md b/_posts/english/2018-09-01-touch_buy.md
index d0f0ae3c6..1bc1d000d 100644
--- a/_posts/english/2018-09-01-touch_buy.md
+++ b/_posts/english/2018-09-01-touch_buy.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2018-09-01-utips.md b/_posts/english/2018-09-01-utips.md
index 394f29e34..54079868b 100644
--- a/_posts/english/2018-09-01-utips.md
+++ b/_posts/english/2018-09-01-utips.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -126,7 +126,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='lets_eigo_puzzle' title='Let'sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
+    <a href='lets_eigo_puzzle' title='Let&#39;sえいごパズル! - 変化するキューブで楽しく学ぶ英単語'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2018-09-01-vreath.md b/_posts/english/2018-09-01-vreath.md
index ce93b1514..55377d827 100644
--- a/_posts/english/2018-09-01-vreath.md
+++ b/_posts/english/2018-09-01-vreath.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-abecobe.md b/_posts/english/2019-09-01-abecobe.md
index addff8eb6..f80ad50c8 100644
--- a/_posts/english/2019-09-01-abecobe.md
+++ b/_posts/english/2019-09-01-abecobe.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-amoyo.md b/_posts/english/2019-09-01-amoyo.md
index d7580244b..cace0bc7c 100644
--- a/_posts/english/2019-09-01-amoyo.md
+++ b/_posts/english/2019-09-01-amoyo.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-det_exploit.md b/_posts/english/2019-09-01-det_exploit.md
index a372bd710..c3deb171c 100644
--- a/_posts/english/2019-09-01-det_exploit.md
+++ b/_posts/english/2019-09-01-det_exploit.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-edge_guided_anime_characters_generation.md b/_posts/english/2019-09-01-edge_guided_anime_characters_generation.md
index a003520c7..e75d3f118 100644
--- a/_posts/english/2019-09-01-edge_guided_anime_characters_generation.md
+++ b/_posts/english/2019-09-01-edge_guided_anime_characters_generation.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-fresh_capsule.md b/_posts/english/2019-09-01-fresh_capsule.md
index 357327455..6ed8a67ac 100644
--- a/_posts/english/2019-09-01-fresh_capsule.md
+++ b/_posts/english/2019-09-01-fresh_capsule.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-mallet.md b/_posts/english/2019-09-01-mallet.md
index a6ecff623..f1f293201 100644
--- a/_posts/english/2019-09-01-mallet.md
+++ b/_posts/english/2019-09-01-mallet.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-manage_stock.md b/_posts/english/2019-09-01-manage_stock.md
index 87b7040df..c627a5d54 100644
--- a/_posts/english/2019-09-01-manage_stock.md
+++ b/_posts/english/2019-09-01-manage_stock.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-neulot.md b/_posts/english/2019-09-01-neulot.md
index 8991b7d7f..5a322a27a 100644
--- a/_posts/english/2019-09-01-neulot.md
+++ b/_posts/english/2019-09-01-neulot.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-pirka.md b/_posts/english/2019-09-01-pirka.md
index c2fa5d287..cbae767c3 100644
--- a/_posts/english/2019-09-01-pirka.md
+++ b/_posts/english/2019-09-01-pirka.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-relay_master.md b/_posts/english/2019-09-01-relay_master.md
index e47a835bd..531f53c10 100644
--- a/_posts/english/2019-09-01-relay_master.md
+++ b/_posts/english/2019-09-01-relay_master.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-smart_vj.md b/_posts/english/2019-09-01-smart_vj.md
index 76486b76a..9c271ebe8 100644
--- a/_posts/english/2019-09-01-smart_vj.md
+++ b/_posts/english/2019-09-01-smart_vj.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-tea.md b/_posts/english/2019-09-01-tea.md
index 548c6eaa1..00489ec23 100644
--- a/_posts/english/2019-09-01-tea.md
+++ b/_posts/english/2019-09-01-tea.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2019-09-01-virtual_presents.md b/_posts/english/2019-09-01-virtual_presents.md
index c55f0333b..17361835a 100644
--- a/_posts/english/2019-09-01-virtual_presents.md
+++ b/_posts/english/2019-09-01-virtual_presents.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-align.md b/_posts/english/2020-09-01-align.md
index a00f36ad9..e9dae27e4 100644
--- a/_posts/english/2020-09-01-align.md
+++ b/_posts/english/2020-09-01-align.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-brush_talk.md b/_posts/english/2020-09-01-brush_talk.md
index edd965df2..1ee327bc2 100644
--- a/_posts/english/2020-09-01-brush_talk.md
+++ b/_posts/english/2020-09-01-brush_talk.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-color_overlap.md b/_posts/english/2020-09-01-color_overlap.md
index 7ec07e8ef..692b4c1bc 100644
--- a/_posts/english/2020-09-01-color_overlap.md
+++ b/_posts/english/2020-09-01-color_overlap.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-critica.md b/_posts/english/2020-09-01-critica.md
index 5dd77c7fa..fe3e35103 100644
--- a/_posts/english/2020-09-01-critica.md
+++ b/_posts/english/2020-09-01-critica.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-flight_fit_vr.md b/_posts/english/2020-09-01-flight_fit_vr.md
index ace15df00..9cdba7088 100644
--- a/_posts/english/2020-09-01-flight_fit_vr.md
+++ b/_posts/english/2020-09-01-flight_fit_vr.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-force_book.md b/_posts/english/2020-09-01-force_book.md
index a66c60773..161a6c33a 100644
--- a/_posts/english/2020-09-01-force_book.md
+++ b/_posts/english/2020-09-01-force_book.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-glider_gun.md b/_posts/english/2020-09-01-glider_gun.md
index bf220a388..9cfbd2434 100644
--- a/_posts/english/2020-09-01-glider_gun.md
+++ b/_posts/english/2020-09-01-glider_gun.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-guinfra.md b/_posts/english/2020-09-01-guinfra.md
index 80154998b..6012986c5 100644
--- a/_posts/english/2020-09-01-guinfra.md
+++ b/_posts/english/2020-09-01-guinfra.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-levo.md b/_posts/english/2020-09-01-levo.md
index 1d0da526c..09bdb3525 100644
--- a/_posts/english/2020-09-01-levo.md
+++ b/_posts/english/2020-09-01-levo.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-mer.md b/_posts/english/2020-09-01-mer.md
index 86ec16e91..d6e822d30 100644
--- a/_posts/english/2020-09-01-mer.md
+++ b/_posts/english/2020-09-01-mer.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -114,7 +114,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='visible' title='Visible ─ Webアクセシビリティー診断 & 修正提案ツール'>
+    <a href='visible' title='Visible ─ Webアクセシビリティー診断 &amp; 修正提案ツール'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2020-09-01-poet.md b/_posts/english/2020-09-01-poet.md
index 8bc7c6c7d..4e575468b 100644
--- a/_posts/english/2020-09-01-poet.md
+++ b/_posts/english/2020-09-01-poet.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -126,7 +126,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='visible' title='Visible ─ Webアクセシビリティー診断 & 修正提案ツール'>
+    <a href='visible' title='Visible ─ Webアクセシビリティー診断 &amp; 修正提案ツール'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2020-09-01-rocat.md b/_posts/english/2020-09-01-rocat.md
index c31a71ee2..a153cdd3c 100644
--- a/_posts/english/2020-09-01-rocat.md
+++ b/_posts/english/2020-09-01-rocat.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-skimer.md b/_posts/english/2020-09-01-skimer.md
index 25475fc4c..f11a37947 100644
--- a/_posts/english/2020-09-01-skimer.md
+++ b/_posts/english/2020-09-01-skimer.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-spaghetian.md b/_posts/english/2020-09-01-spaghetian.md
index eee107eb3..c78bf67d4 100644
--- a/_posts/english/2020-09-01-spaghetian.md
+++ b/_posts/english/2020-09-01-spaghetian.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2020-09-01-visible.md b/_posts/english/2020-09-01-visible.md
index 015f37cfc..8cbcbefeb 100644
--- a/_posts/english/2020-09-01-visible.md
+++ b/_posts/english/2020-09-01-visible.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-anyget.md b/_posts/english/2021-09-01-anyget.md
index 522f87f42..3993ba134 100644
--- a/_posts/english/2021-09-01-anyget.md
+++ b/_posts/english/2021-09-01-anyget.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-augment.md b/_posts/english/2021-09-01-augment.md
index 4b62bd557..6895c0101 100644
--- a/_posts/english/2021-09-01-augment.md
+++ b/_posts/english/2021-09-01-augment.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -126,7 +126,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='haniwa' title='Haniwa - 家族間タスク共有&報酬提供アプリ'>
+    <a href='haniwa' title='Haniwa - 家族間タスク共有&amp;報酬提供アプリ'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2021-09-01-birds_eye.md b/_posts/english/2021-09-01-birds_eye.md
index a7b0e9966..56864a59e 100644
--- a/_posts/english/2021-09-01-birds_eye.md
+++ b/_posts/english/2021-09-01-birds_eye.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-curepathy.md b/_posts/english/2021-09-01-curepathy.md
index d43a7682c..5e295006b 100644
--- a/_posts/english/2021-09-01-curepathy.md
+++ b/_posts/english/2021-09-01-curepathy.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-cybotanic.md b/_posts/english/2021-09-01-cybotanic.md
index f3caae719..4ba8c234e 100644
--- a/_posts/english/2021-09-01-cybotanic.md
+++ b/_posts/english/2021-09-01-cybotanic.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-haniwa.md b/_posts/english/2021-09-01-haniwa.md
index d3c03e36f..9b28930ed 100644
--- a/_posts/english/2021-09-01-haniwa.md
+++ b/_posts/english/2021-09-01-haniwa.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-killin_engine.md b/_posts/english/2021-09-01-killin_engine.md
index 076b1f5a2..c0033548b 100644
--- a/_posts/english/2021-09-01-killin_engine.md
+++ b/_posts/english/2021-09-01-killin_engine.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -114,7 +114,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='anyget' title='>>Anyget/掲示板形式小説執筆支援ツール'>
+    <a href='anyget' title='&gt;&gt;Anyget/掲示板形式小説執筆支援ツール'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2021-09-01-mark_sdgs.md b/_posts/english/2021-09-01-mark_sdgs.md
index 0d898b427..000f18d8b 100644
--- a/_posts/english/2021-09-01-mark_sdgs.md
+++ b/_posts/english/2021-09-01-mark_sdgs.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-mock_up.md b/_posts/english/2021-09-01-mock_up.md
index 22a60222c..3f006ef27 100644
--- a/_posts/english/2021-09-01-mock_up.md
+++ b/_posts/english/2021-09-01-mock_up.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-puguette.md b/_posts/english/2021-09-01-puguette.md
index db5ac09b8..1fd1edb86 100644
--- a/_posts/english/2021-09-01-puguette.md
+++ b/_posts/english/2021-09-01-puguette.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
@@ -114,7 +114,7 @@ twitter_card: summary_large_image
 
 <nav>
   <p class='nav prev'>
-    <a href='haniwa' title='Haniwa - 家族間タスク共有&報酬提供アプリ'>
+    <a href='haniwa' title='Haniwa - 家族間タスク共有&amp;報酬提供アプリ'>
       &larr; {{ translations.navPrev[lang] }}
       <br>
       {% if page.lang == 'en' %}
@@ -126,7 +126,7 @@ twitter_card: summary_large_image
   </p>
 
   <p class='nav next'>
-    <a href='anyget' title='>>Anyget/掲示板形式小説執筆支援ツール'>
+    <a href='anyget' title='&gt;&gt;Anyget/掲示板形式小説執筆支援ツール'>
       {{ translations.navNext[lang] }} &rarr;
       <br>
       {% if page.lang == 'en' %}
diff --git a/_posts/english/2021-09-01-researcheck.md b/_posts/english/2021-09-01-researcheck.md
index a2d5d7080..7a9e06ab4 100644
--- a/_posts/english/2021-09-01-researcheck.md
+++ b/_posts/english/2021-09-01-researcheck.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-telport.md b/_posts/english/2021-09-01-telport.md
index 1afee11d6..1e894079f 100644
--- a/_posts/english/2021-09-01-telport.md
+++ b/_posts/english/2021-09-01-telport.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-vr_sandbox.md b/_posts/english/2021-09-01-vr_sandbox.md
index 8ac110137..b4bb4409c 100644
--- a/_posts/english/2021-09-01-vr_sandbox.md
+++ b/_posts/english/2021-09-01-vr_sandbox.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2021-09-01-web_koten.md b/_posts/english/2021-09-01-web_koten.md
index 533b3b263..4b886d4e4 100644
--- a/_posts/english/2021-09-01-web_koten.md
+++ b/_posts/english/2021-09-01-web_koten.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-craftere_post.md b/_posts/english/2022-09-01-craftere_post.md
index 6281aa669..bb21cfbbd 100644
--- a/_posts/english/2022-09-01-craftere_post.md
+++ b/_posts/english/2022-09-01-craftere_post.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-fluxel.md b/_posts/english/2022-09-01-fluxel.md
index 94073a79b..61708279e 100644
--- a/_posts/english/2022-09-01-fluxel.md
+++ b/_posts/english/2022-09-01-fluxel.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-hak.md b/_posts/english/2022-09-01-hak.md
index f1b5878ca..7ae10b8e3 100644
--- a/_posts/english/2022-09-01-hak.md
+++ b/_posts/english/2022-09-01-hak.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-michishirube.md b/_posts/english/2022-09-01-michishirube.md
index 068910e86..b494aaa70 100644
--- a/_posts/english/2022-09-01-michishirube.md
+++ b/_posts/english/2022-09-01-michishirube.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-motion_rapid.md b/_posts/english/2022-09-01-motion_rapid.md
index 8e2517ac0..e44d6c071 100644
--- a/_posts/english/2022-09-01-motion_rapid.md
+++ b/_posts/english/2022-09-01-motion_rapid.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-noxicel.md b/_posts/english/2022-09-01-noxicel.md
index e488a772d..f59e1515c 100644
--- a/_posts/english/2022-09-01-noxicel.md
+++ b/_posts/english/2022-09-01-noxicel.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-nu_desktop.md b/_posts/english/2022-09-01-nu_desktop.md
index 71f772723..95ec8faf1 100644
--- a/_posts/english/2022-09-01-nu_desktop.md
+++ b/_posts/english/2022-09-01-nu_desktop.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-r-order.md b/_posts/english/2022-09-01-r-order.md
index 95fc6dcde..f2ac7ef16 100644
--- a/_posts/english/2022-09-01-r-order.md
+++ b/_posts/english/2022-09-01-r-order.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-sanitas.md b/_posts/english/2022-09-01-sanitas.md
index d59f5ddd2..effc55900 100644
--- a/_posts/english/2022-09-01-sanitas.md
+++ b/_posts/english/2022-09-01-sanitas.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-scairecrow.md b/_posts/english/2022-09-01-scairecrow.md
index a5d88f243..83a771f84 100644
--- a/_posts/english/2022-09-01-scairecrow.md
+++ b/_posts/english/2022-09-01-scairecrow.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2022-09-01-study_rec.md b/_posts/english/2022-09-01-study_rec.md
index e9a00faac..7965ace1b 100644
--- a/_posts/english/2022-09-01-study_rec.md
+++ b/_posts/english/2022-09-01-study_rec.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-3d_printed_brushless_motor.md b/_posts/english/2023-09-01-3d_printed_brushless_motor.md
index 27ff10d5a..579641f59 100644
--- a/_posts/english/2023-09-01-3d_printed_brushless_motor.md
+++ b/_posts/english/2023-09-01-3d_printed_brushless_motor.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-a9n.md b/_posts/english/2023-09-01-a9n.md
index bf242f298..999e2e78e 100644
--- a/_posts/english/2023-09-01-a9n.md
+++ b/_posts/english/2023-09-01-a9n.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-ai_4koma_maker.md b/_posts/english/2023-09-01-ai_4koma_maker.md
index 563316ddb..61c339997 100644
--- a/_posts/english/2023-09-01-ai_4koma_maker.md
+++ b/_posts/english/2023-09-01-ai_4koma_maker.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-bakusoku_agv.md b/_posts/english/2023-09-01-bakusoku_agv.md
index 24928ee23..00228cf09 100644
--- a/_posts/english/2023-09-01-bakusoku_agv.md
+++ b/_posts/english/2023-09-01-bakusoku_agv.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-be_free.md b/_posts/english/2023-09-01-be_free.md
index b565c38c2..6d9d38960 100644
--- a/_posts/english/2023-09-01-be_free.md
+++ b/_posts/english/2023-09-01-be_free.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-capitalens.md b/_posts/english/2023-09-01-capitalens.md
index aa4de199b..7e6310503 100644
--- a/_posts/english/2023-09-01-capitalens.md
+++ b/_posts/english/2023-09-01-capitalens.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-code_museum.md b/_posts/english/2023-09-01-code_museum.md
index 9d1d483a9..c6c867d9b 100644
--- a/_posts/english/2023-09-01-code_museum.md
+++ b/_posts/english/2023-09-01-code_museum.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-hato.md b/_posts/english/2023-09-01-hato.md
index 3569ee199..8c60649c1 100644
--- a/_posts/english/2023-09-01-hato.md
+++ b/_posts/english/2023-09-01-hato.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-lescued.md b/_posts/english/2023-09-01-lescued.md
index 74ad720d1..77aff465a 100644
--- a/_posts/english/2023-09-01-lescued.md
+++ b/_posts/english/2023-09-01-lescued.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-motion_simulator.md b/_posts/english/2023-09-01-motion_simulator.md
index a8ad568b4..30474bc13 100644
--- a/_posts/english/2023-09-01-motion_simulator.md
+++ b/_posts/english/2023-09-01-motion_simulator.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-niwangojs.md b/_posts/english/2023-09-01-niwangojs.md
index 697d092ab..5d5156c21 100644
--- a/_posts/english/2023-09-01-niwangojs.md
+++ b/_posts/english/2023-09-01-niwangojs.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-stask.md b/_posts/english/2023-09-01-stask.md
index 9e85c23ce..b1f5895ea 100644
--- a/_posts/english/2023-09-01-stask.md
+++ b/_posts/english/2023-09-01-stask.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-umeda_sansei_kai.md b/_posts/english/2023-09-01-umeda_sansei_kai.md
index 3a5ebd7f2..c6d423712 100644
--- a/_posts/english/2023-09-01-umeda_sansei_kai.md
+++ b/_posts/english/2023-09-01-umeda_sansei_kai.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2023-09-01-voice_genius.md b/_posts/english/2023-09-01-voice_genius.md
index f8e3c7885..7ace06d53 100644
--- a/_posts/english/2023-09-01-voice_genius.md
+++ b/_posts/english/2023-09-01-voice_genius.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-ai_study.md b/_posts/english/2024-09-01-ai_study.md
index 935c31e5b..20e7924f3 100644
--- a/_posts/english/2024-09-01-ai_study.md
+++ b/_posts/english/2024-09-01-ai_study.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-bento_color.md b/_posts/english/2024-09-01-bento_color.md
index d375de36e..b0af0c4b7 100644
--- a/_posts/english/2024-09-01-bento_color.md
+++ b/_posts/english/2024-09-01-bento_color.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-co_encoder.md b/_posts/english/2024-09-01-co_encoder.md
index 683ab80e4..7d75bf841 100644
--- a/_posts/english/2024-09-01-co_encoder.md
+++ b/_posts/english/2024-09-01-co_encoder.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-digikan.md b/_posts/english/2024-09-01-digikan.md
index e687e8ca6..c2692ae45 100644
--- a/_posts/english/2024-09-01-digikan.md
+++ b/_posts/english/2024-09-01-digikan.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-fairy_guide.md b/_posts/english/2024-09-01-fairy_guide.md
index 5f24600e2..528e23d92 100644
--- a/_posts/english/2024-09-01-fairy_guide.md
+++ b/_posts/english/2024-09-01-fairy_guide.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-inton.md b/_posts/english/2024-09-01-inton.md
index 67ce2c114..5fbf66093 100644
--- a/_posts/english/2024-09-01-inton.md
+++ b/_posts/english/2024-09-01-inton.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-jellyfish_alert.md b/_posts/english/2024-09-01-jellyfish_alert.md
index 707e7dde3..f48c5026b 100644
--- a/_posts/english/2024-09-01-jellyfish_alert.md
+++ b/_posts/english/2024-09-01-jellyfish_alert.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-maglev_sphere_mobility.md b/_posts/english/2024-09-01-maglev_sphere_mobility.md
index 46c8dff3f..e8c30ccc5 100644
--- a/_posts/english/2024-09-01-maglev_sphere_mobility.md
+++ b/_posts/english/2024-09-01-maglev_sphere_mobility.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-mimamori_compass.md b/_posts/english/2024-09-01-mimamori_compass.md
index a969e70ad..2bccfc594 100644
--- a/_posts/english/2024-09-01-mimamori_compass.md
+++ b/_posts/english/2024-09-01-mimamori_compass.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-mimic.md b/_posts/english/2024-09-01-mimic.md
index 76b0703a3..7f6469bd0 100644
--- a/_posts/english/2024-09-01-mimic.md
+++ b/_posts/english/2024-09-01-mimic.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-picto_plate.md b/_posts/english/2024-09-01-picto_plate.md
index a57494b15..3b514c804 100644
--- a/_posts/english/2024-09-01-picto_plate.md
+++ b/_posts/english/2024-09-01-picto_plate.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-qwet.md b/_posts/english/2024-09-01-qwet.md
index 004d05d92..940371a36 100644
--- a/_posts/english/2024-09-01-qwet.md
+++ b/_posts/english/2024-09-01-qwet.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-reproduce.md b/_posts/english/2024-09-01-reproduce.md
index ace849fad..4f8a311f6 100644
--- a/_posts/english/2024-09-01-reproduce.md
+++ b/_posts/english/2024-09-01-reproduce.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-sakubun_otasuke.md b/_posts/english/2024-09-01-sakubun_otasuke.md
index f84cdce46..c796e3592 100644
--- a/_posts/english/2024-09-01-sakubun_otasuke.md
+++ b/_posts/english/2024-09-01-sakubun_otasuke.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-swaq.md b/_posts/english/2024-09-01-swaq.md
index 2cef18bdc..fc4382ff0 100644
--- a/_posts/english/2024-09-01-swaq.md
+++ b/_posts/english/2024-09-01-swaq.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-tactica_note.md b/_posts/english/2024-09-01-tactica_note.md
index c3072beb1..35a5157ea 100644
--- a/_posts/english/2024-09-01-tactica_note.md
+++ b/_posts/english/2024-09-01-tactica_note.md
@@ -67,7 +67,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}
diff --git a/_posts/english/2024-09-01-tutoriallm.md b/_posts/english/2024-09-01-tutoriallm.md
index b925d1c75..7c2990b2b 100644
--- a/_posts/english/2024-09-01-tutoriallm.md
+++ b/_posts/english/2024-09-01-tutoriallm.md
@@ -66,7 +66,7 @@ twitter_card: summary_large_image
   </small>
 </p>
 
-{% if page.lang == 'ja' and pj.comment %}
+{% if pj.comment and page.lang != 'en' %}
 ### PM コメント {#comment}
 <p class="project-comment">{{ pj.comment }}</p>
 {% endif %}