diff --git a/src/docs/asciidoc/index.adoc b/src/docs/asciidoc/index.adoc
index e3d8a51a..b1ad4db9 100644
--- a/src/docs/asciidoc/index.adoc
+++ b/src/docs/asciidoc/index.adoc
@@ -99,11 +99,6 @@
 
 * link:purchase-check.html[구독 상태 및 열람권 개수 조회하기]
 
-=== Pay API
-
-- @Deprecated at 2024.03
-* link:pay.html[결제 전환율 체크]
-
 === Notice API
 
 * 🆕 link:find-notice.html[공지 조회, 2024-01-29]
diff --git a/src/docs/asciidoc/pay.adoc b/src/docs/asciidoc/pay.adoc
deleted file mode 100644
index 14a67d19..00000000
--- a/src/docs/asciidoc/pay.adoc
+++ /dev/null
@@ -1,10 +0,0 @@
-:reproducible:
-== 친구 추가하기
-
-=== 요청
-
-include::{snippets}/api/v1/pay/postPayCount/http-request.adoc[]
-
-=== 응답
-
-include::{snippets}/api/v1/pay/postPayCount/http-response.adoc[]
diff --git a/src/main/java/com/yello/server/domain/authorization/filter/JwtExceptionFilter.java b/src/main/java/com/yello/server/domain/authorization/filter/JwtExceptionFilter.java
index b635332c..2b76a64b 100644
--- a/src/main/java/com/yello/server/domain/authorization/filter/JwtExceptionFilter.java
+++ b/src/main/java/com/yello/server/domain/authorization/filter/JwtExceptionFilter.java
@@ -50,8 +50,7 @@ protected void doFilterInternal(
             || requestPath.startsWith("/v2/google/notifications")
             || requestPath.startsWith("/api/v1/admob/verify")
             || requestPath.startsWith("/api/v1/statistics")
-            || (requestPath.startsWith("/api/v1/auth")
-            && !requestPath.startsWith("/api/v1/auth/token/issue"))) {
+            || (requestPath.startsWith("/api/v1/auth") && !requestPath.startsWith("/api/v1/auth/token/issue"))) {
             filterChain.doFilter(request, response);
             return;
         }
@@ -68,6 +67,22 @@ protected void doFilterInternal(
                     throw new CustomAuthenticationException(AUTHENTICATION_ERROR);
                 }
 
+                val token = accessHeader.substring(BEARER.length());
+                Long userId = tokenProvider.getUserId(token);
+                request.setAttribute("userId", userId);
+            } else if (requestPath.equals("/api/v1/user/post/comment")) {
+                val accessHeader = request.getHeader(AUTHORIZATION);
+                log.info("Authorization : {}", accessHeader);
+
+                if (accessHeader == null) {
+                    filterChain.doFilter(request, response);
+                    return;
+                }
+
+                if (!accessHeader.startsWith(BEARER)) {
+                    throw new CustomAuthenticationException(AUTHENTICATION_ERROR);
+                }
+
                 val token = accessHeader.substring(BEARER.length());
                 Long userId = tokenProvider.getUserId(token);
                 request.setAttribute("userId", userId);
diff --git a/src/main/java/com/yello/server/domain/authorization/filter/JwtFilter.java b/src/main/java/com/yello/server/domain/authorization/filter/JwtFilter.java
index 7689136b..3bcc310e 100644
--- a/src/main/java/com/yello/server/domain/authorization/filter/JwtFilter.java
+++ b/src/main/java/com/yello/server/domain/authorization/filter/JwtFilter.java
@@ -1,5 +1,7 @@
 package com.yello.server.domain.authorization.filter;
 
+import static org.springframework.http.HttpHeaders.AUTHORIZATION;
+
 import com.yello.server.domain.user.entity.User;
 import com.yello.server.domain.user.repository.UserRepository;
 import jakarta.servlet.FilterChain;
@@ -48,6 +50,11 @@ protected void doFilterInternal(HttpServletRequest request, HttpServletResponse
             return;
         }
 
+        if (requestPath.equals("/api/v1/user/post/comment") && request.getHeader(AUTHORIZATION) == null) {
+            filterChain.doFilter(request, response);
+            return;
+        }
+
         final Long userId = (Long) request.getAttribute("userId");
         log.info("Current user's id: {}", userId);
 
diff --git a/src/main/java/com/yello/server/domain/pay/controller/PayController.java b/src/main/java/com/yello/server/domain/pay/controller/PayController.java
deleted file mode 100644
index e7a8bf1e..00000000
--- a/src/main/java/com/yello/server/domain/pay/controller/PayController.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.yello.server.domain.pay.controller;
-
-import static com.yello.server.global.common.SuccessCode.CREATE_PAY_COUNT;
-
-import com.yello.server.domain.pay.dto.request.PayCountRequest;
-import com.yello.server.domain.pay.service.PayService;
-import com.yello.server.domain.user.entity.User;
-import com.yello.server.global.common.annotation.AccessTokenUser;
-import com.yello.server.global.common.dto.BaseResponse;
-import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-@RequestMapping("api/v1/pay")
-@RequiredArgsConstructor
-public class PayController {
-
-    private final PayService payService;
-
-    @PostMapping
-    public BaseResponse postPayCount(@AccessTokenUser User user, @RequestBody PayCountRequest request) {
-        payService.postPayCount(user.getId(), request.index());
-        return BaseResponse.success(CREATE_PAY_COUNT);
-    }
-}
diff --git a/src/main/java/com/yello/server/domain/pay/dto/request/PayCountRequest.java b/src/main/java/com/yello/server/domain/pay/dto/request/PayCountRequest.java
deleted file mode 100644
index f54bbe4f..00000000
--- a/src/main/java/com/yello/server/domain/pay/dto/request/PayCountRequest.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package com.yello.server.domain.pay.dto.request;
-
-import lombok.Builder;
-
-@Builder
-public record PayCountRequest(
-    Integer index
-) {
-
-}
diff --git a/src/main/java/com/yello/server/domain/pay/repository/PayJpaRepository.java b/src/main/java/com/yello/server/domain/pay/repository/PayJpaRepository.java
deleted file mode 100644
index 7b32874d..00000000
--- a/src/main/java/com/yello/server/domain/pay/repository/PayJpaRepository.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package com.yello.server.domain.pay.repository;
-
-import com.yello.server.domain.pay.entity.Pay;
-import com.yello.server.domain.user.entity.User;
-import java.util.List;
-import org.springframework.data.jpa.repository.JpaRepository;
-
-public interface PayJpaRepository extends JpaRepository<Pay, Long> {
-
-    List<Pay> findAllByUserAndOptionIndex(User user, Integer optionIndex);
-}
diff --git a/src/main/java/com/yello/server/domain/pay/repository/PayRepository.java b/src/main/java/com/yello/server/domain/pay/repository/PayRepository.java
deleted file mode 100644
index 778aec1e..00000000
--- a/src/main/java/com/yello/server/domain/pay/repository/PayRepository.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.yello.server.domain.pay.repository;
-
-import com.yello.server.domain.pay.entity.Pay;
-import com.yello.server.domain.user.entity.User;
-import java.util.List;
-
-public interface PayRepository {
-
-    Pay save(Pay pay);
-
-    List<Pay> findAllByUserAndOptionIndex(User user, Integer optionIndex);
-}
diff --git a/src/main/java/com/yello/server/domain/pay/repository/PayRepositoryImpl.java b/src/main/java/com/yello/server/domain/pay/repository/PayRepositoryImpl.java
deleted file mode 100644
index 457d21a3..00000000
--- a/src/main/java/com/yello/server/domain/pay/repository/PayRepositoryImpl.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.yello.server.domain.pay.repository;
-
-import com.yello.server.domain.pay.entity.Pay;
-import com.yello.server.domain.user.entity.User;
-import java.util.List;
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Repository;
-
-@Repository
-@RequiredArgsConstructor
-public class PayRepositoryImpl implements PayRepository {
-
-    private final PayJpaRepository payJpaRepository;
-
-    @Override
-    public Pay save(Pay pay) {
-        return payJpaRepository.save(pay);
-    }
-
-    @Override
-    public List<Pay> findAllByUserAndOptionIndex(User user, Integer optionIndex) {
-        return payJpaRepository.findAllByUserAndOptionIndex(user, optionIndex);
-    }
-}
diff --git a/src/main/java/com/yello/server/domain/pay/service/PayService.java b/src/main/java/com/yello/server/domain/pay/service/PayService.java
deleted file mode 100644
index 4ccd1548..00000000
--- a/src/main/java/com/yello/server/domain/pay/service/PayService.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.yello.server.domain.pay.service;
-
-import com.yello.server.domain.pay.entity.Pay;
-import com.yello.server.domain.pay.repository.PayRepository;
-import com.yello.server.domain.user.entity.User;
-import com.yello.server.domain.user.repository.UserRepository;
-import java.util.List;
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-@Service
-@RequiredArgsConstructor
-@Transactional(readOnly = true)
-public class PayService {
-
-    private final UserRepository userRepository;
-    private final PayRepository payRepository;
-
-    @Transactional
-    public void postPayCount(Long userId, Integer optionIndex) {
-        final User user = userRepository.getById(userId);
-        final List<Pay> allByUserAndIndex = payRepository.findAllByUserAndOptionIndex(user,
-            optionIndex);
-        if (allByUserAndIndex.isEmpty()) {
-            payRepository.save(Pay.createPay(optionIndex, user));
-        }
-    }
-}
diff --git a/src/main/java/com/yello/server/domain/user/controller/UserController.java b/src/main/java/com/yello/server/domain/user/controller/UserController.java
index d3705f9d..16316a6d 100644
--- a/src/main/java/com/yello/server/domain/user/controller/UserController.java
+++ b/src/main/java/com/yello/server/domain/user/controller/UserController.java
@@ -1,6 +1,8 @@
 package com.yello.server.domain.user.controller;
 
 import static com.yello.server.global.common.SuccessCode.DELETE_USER_SUCCESS;
+import static com.yello.server.global.common.SuccessCode.GET_USER_POST_COMMENT_SUCCESS;
+import static com.yello.server.global.common.SuccessCode.POST_USER_POST_COMMENT_SUCCESS;
 import static com.yello.server.global.common.SuccessCode.READ_USER_DATA_SUCCESS;
 import static com.yello.server.global.common.SuccessCode.READ_USER_SUBSCRIBE_SUCCESS;
 import static com.yello.server.global.common.SuccessCode.READ_USER_SUCCESS;
@@ -11,10 +13,12 @@
 import com.yello.server.domain.user.dto.request.UserDataUpdateRequest;
 import com.yello.server.domain.user.dto.request.UserDeleteReasonRequest;
 import com.yello.server.domain.user.dto.request.UserDeviceTokenRequest;
+import com.yello.server.domain.user.dto.request.UserPostCommentUpdateRequest;
 import com.yello.server.domain.user.dto.request.UserUpdateRequest;
 import com.yello.server.domain.user.dto.response.UserDataResponse;
 import com.yello.server.domain.user.dto.response.UserDetailResponse;
 import com.yello.server.domain.user.dto.response.UserDetailV2Response;
+import com.yello.server.domain.user.dto.response.UserPostCommentResponse;
 import com.yello.server.domain.user.dto.response.UserResponse;
 import com.yello.server.domain.user.dto.response.UserSubscribeDetailResponse;
 import com.yello.server.domain.user.entity.User;
@@ -23,8 +27,10 @@
 import com.yello.server.global.common.annotation.AccessTokenUser;
 import com.yello.server.global.common.dto.BaseResponse;
 import com.yello.server.global.common.dto.EmptyObject;
+import jakarta.annotation.Nullable;
 import lombok.RequiredArgsConstructor;
 import lombok.val;
+import org.springframework.data.domain.Pageable;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -32,6 +38,7 @@
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -105,4 +112,19 @@ public BaseResponse updateUserData(@AccessTokenUser User user, @PathVariable("ta
         userService.updateUserData(user.getId(), UserDataType.fromCode(tag), request);
         return BaseResponse.success(UPDATE_USER_DATA_SUCCESS);
     }
+
+    @GetMapping("/v1/user/post/comment")
+    public BaseResponse<UserPostCommentResponse> getUserPostComment(@Nullable @AccessTokenUser User user,
+        @RequestParam(value = "postId") Long postId, Pageable pageable) {
+        System.out.println("user = " + user);
+        val data = userService.getUserPostComment(user == null ? null : user.getId(), postId, pageable);
+        return BaseResponse.success(GET_USER_POST_COMMENT_SUCCESS, data);
+    }
+
+    @PostMapping("/v1/user/post/comment")
+    public BaseResponse postUserPostComment(@Nullable @AccessTokenUser User user,
+        @RequestBody UserPostCommentUpdateRequest request) {
+        userService.updatePostComment(user == null ? null : user.getId(), request);
+        return BaseResponse.success(POST_USER_POST_COMMENT_SUCCESS);
+    }
 }
diff --git a/src/main/java/com/yello/server/domain/user/dto/request/UserPostCommentUpdateRequest.java b/src/main/java/com/yello/server/domain/user/dto/request/UserPostCommentUpdateRequest.java
new file mode 100644
index 00000000..8fc53506
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/dto/request/UserPostCommentUpdateRequest.java
@@ -0,0 +1,16 @@
+package com.yello.server.domain.user.dto.request;
+
+import jakarta.annotation.Nullable;
+
+public record UserPostCommentUpdateRequest(
+    @Nullable Long id,
+    Long postId,
+    String userName,
+    String yelloId,
+    String status,
+    String title,
+    String subtitle,
+    String content
+) {
+
+}
diff --git a/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentResponse.java b/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentResponse.java
new file mode 100644
index 00000000..154b9b97
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentResponse.java
@@ -0,0 +1,13 @@
+package com.yello.server.domain.user.dto.response;
+
+import java.util.List;
+import lombok.Builder;
+
+@Builder
+public record UserPostCommentResponse(
+    Long pageCount,
+    Long totalCount,
+    List<UserPostCommentVO> postCommentList
+) {
+
+}
diff --git a/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentVO.java b/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentVO.java
new file mode 100644
index 00000000..5967aac7
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/dto/response/UserPostCommentVO.java
@@ -0,0 +1,40 @@
+package com.yello.server.domain.user.dto.response;
+
+import com.yello.server.domain.user.entity.User;
+import com.yello.server.domain.user.entity.UserPost;
+import com.yello.server.domain.user.entity.UserPostComment;
+import lombok.Builder;
+
+@Builder
+public record UserPostCommentVO(
+    Long id,
+    Long userPostId,
+    Long userId,
+    String status,
+    String userName,
+    String yelloId,
+    String title,
+    String subtitle,
+    String content,
+    String createdAt,
+    String updatedAt
+) {
+
+    public static UserPostCommentVO of(UserPostComment userPostComment) {
+        UserPost userPost = userPostComment.getUserPost();
+        User user = userPostComment.getUser();
+        return UserPostCommentVO.builder()
+            .id(userPostComment.getId())
+            .userPostId(userPost == null ? null : userPost.getId())
+            .userId(user == null ? null : user.getId())
+            .status(userPostComment.getStatus().getInitial())
+            .userName(userPostComment.getUserName())
+            .yelloId(userPostComment.getYelloId())
+            .title(userPostComment.getTitle())
+            .subtitle(userPostComment.getSubtitle())
+            .content(userPostComment.getContent())
+            .createdAt(String.valueOf(userPostComment.getCreatedAt()))
+            .updatedAt(String.valueOf(userPostComment.getUpdatedAt()))
+            .build();
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/pay/entity/Pay.java b/src/main/java/com/yello/server/domain/user/entity/UserPost.java
similarity index 52%
rename from src/main/java/com/yello/server/domain/pay/entity/Pay.java
rename to src/main/java/com/yello/server/domain/user/entity/UserPost.java
index 47463c7d..b9cfe813 100644
--- a/src/main/java/com/yello/server/domain/pay/entity/Pay.java
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPost.java
@@ -1,6 +1,8 @@
-package com.yello.server.domain.pay.entity;
+package com.yello.server.domain.user.entity;
 
-import com.yello.server.domain.user.entity.User;
+import com.yello.server.global.common.dto.AuditingTimeEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Convert;
 import jakarta.persistence.Entity;
 import jakarta.persistence.FetchType;
 import jakarta.persistence.GeneratedValue;
@@ -16,32 +18,39 @@
 import org.hibernate.annotations.OnDelete;
 import org.hibernate.annotations.OnDeleteAction;
 
-@Entity
 @Getter
+@Entity
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Pay {
+public class UserPost extends AuditingTimeEntity {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    private Integer optionIndex;
-
     @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "userId")
-    @OnDelete(action = OnDeleteAction.CASCADE)
+    @OnDelete(action = OnDeleteAction.SET_NULL)
+    @JoinColumn(name = "userId", nullable = true)
     private User user;
 
-    public static Pay of(Integer optionIndex, User user) {
-        return Pay.builder()
-            .optionIndex(optionIndex)
-            .user(user)
-            .build();
-    }
-
-    public static Pay createPay(Integer optionIndex, User user) {
-        return Pay.of(optionIndex, user);
-    }
-}
+    @Column(nullable = false)
+    @Convert(converter = UserPostStatusConverter.class)
+    private UserPostStatus status;
+
+    @Column
+    private String userName;
+
+    @Column
+    private String yelloId;
+
+    @Column
+    private String title;
+
+    @Column
+    private String subtitle;
+
+    @Column(columnDefinition = "MEDIUMTEXT")
+    private String content;
+
+}
\ No newline at end of file
diff --git a/src/main/java/com/yello/server/domain/user/entity/UserPostComment.java b/src/main/java/com/yello/server/domain/user/entity/UserPostComment.java
new file mode 100644
index 00000000..a482f709
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPostComment.java
@@ -0,0 +1,73 @@
+package com.yello.server.domain.user.entity;
+
+import com.yello.server.domain.user.dto.request.UserPostCommentUpdateRequest;
+import com.yello.server.global.common.dto.AuditingTimeEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Convert;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
+
+@Getter
+@Entity
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class UserPostComment extends AuditingTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @OnDelete(action = OnDeleteAction.RESTRICT)
+    @JoinColumn(name = "userPostId", nullable = false)
+    private UserPost userPost;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @OnDelete(action = OnDeleteAction.SET_NULL)
+    @JoinColumn(name = "userId", nullable = true)
+    private User user;
+
+    @Column(nullable = false)
+    @Convert(converter = UserPostCommentStatusConverter.class)
+    private UserPostCommentStatus status;
+
+    @Column
+    private String userName;
+
+    @Column
+    private String yelloId;
+
+    @Column
+    private String title;
+
+    @Column
+    private String subtitle;
+
+    @Column(columnDefinition = "TEXT")
+    private String content;
+
+    public void update(UserPostCommentUpdateRequest request, UserPost userPost, User user,
+        UserPostCommentStatus status) {
+        this.userPost = userPost;
+        this.user = user;
+        this.status = status;
+        this.userName = request.userName();
+        this.yelloId = request.yelloId();
+        this.title = request.title();
+        this.subtitle = request.subtitle();
+        this.content = request.content();
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatus.java b/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatus.java
new file mode 100644
index 00000000..d3757166
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatus.java
@@ -0,0 +1,31 @@
+package com.yello.server.domain.user.entity;
+
+import static com.yello.server.global.common.ErrorCode.ENUM_BAD_REQUEST_EXCEPTION;
+
+import com.yello.server.global.exception.EnumIllegalArgumentException;
+import java.util.Arrays;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
+public enum UserPostCommentStatus {
+    ACTIVE("ACTIVE"),
+    INACTIVE("INACTIVE");
+
+    private final String initial;
+
+    public static UserPostCommentStatus fromCode(String dbData) {
+        return Arrays.stream(UserPostCommentStatus.values())
+            .filter(v -> v.getInitial().equals(dbData))
+            .findAny()
+            .orElseThrow(() -> new EnumIllegalArgumentException(ENUM_BAD_REQUEST_EXCEPTION));
+    }
+
+    public static UserPostCommentStatus fromName(String name) {
+        return Arrays.stream(UserPostCommentStatus.values())
+            .filter(v -> v.name().equals(name))
+            .findAny()
+            .orElseThrow(() -> new EnumIllegalArgumentException(ENUM_BAD_REQUEST_EXCEPTION));
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatusConverter.java b/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatusConverter.java
new file mode 100644
index 00000000..f533ffa2
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPostCommentStatusConverter.java
@@ -0,0 +1,25 @@
+package com.yello.server.domain.user.entity;
+
+import jakarta.persistence.AttributeConverter;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class UserPostCommentStatusConverter implements AttributeConverter<UserPostCommentStatus, String> {
+
+    @Override
+    public String convertToDatabaseColumn(UserPostCommentStatus userData) {
+        if (userData == null) {
+            return null;
+        }
+        return userData.name();
+    }
+
+    @Override
+    public UserPostCommentStatus convertToEntityAttribute(String dbData) {
+        if (dbData == null) {
+            return null;
+        }
+
+        return UserPostCommentStatus.fromName(dbData);
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/entity/UserPostStatus.java b/src/main/java/com/yello/server/domain/user/entity/UserPostStatus.java
new file mode 100644
index 00000000..d69fef30
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPostStatus.java
@@ -0,0 +1,31 @@
+package com.yello.server.domain.user.entity;
+
+import static com.yello.server.global.common.ErrorCode.ENUM_BAD_REQUEST_EXCEPTION;
+
+import com.yello.server.global.exception.EnumIllegalArgumentException;
+import java.util.Arrays;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
+public enum UserPostStatus {
+    ACTIVE("ACTIVE"),
+    INACTIVE("INACTIVE");
+
+    private final String initial;
+
+    public static UserPostStatus fromCode(String dbData) {
+        return Arrays.stream(UserPostStatus.values())
+            .filter(v -> v.getInitial().equals(dbData))
+            .findAny()
+            .orElseThrow(() -> new EnumIllegalArgumentException(ENUM_BAD_REQUEST_EXCEPTION));
+    }
+
+    public static UserPostStatus fromName(String name) {
+        return Arrays.stream(UserPostStatus.values())
+            .filter(v -> v.name().equals(name))
+            .findAny()
+            .orElseThrow(() -> new EnumIllegalArgumentException(ENUM_BAD_REQUEST_EXCEPTION));
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/entity/UserPostStatusConverter.java b/src/main/java/com/yello/server/domain/user/entity/UserPostStatusConverter.java
new file mode 100644
index 00000000..7b851bf4
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/entity/UserPostStatusConverter.java
@@ -0,0 +1,25 @@
+package com.yello.server.domain.user.entity;
+
+import jakarta.persistence.AttributeConverter;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class UserPostStatusConverter implements AttributeConverter<UserPostStatus, String> {
+
+    @Override
+    public String convertToDatabaseColumn(UserPostStatus userData) {
+        if (userData == null) {
+            return null;
+        }
+        return userData.name();
+    }
+
+    @Override
+    public UserPostStatus convertToEntityAttribute(String dbData) {
+        if (dbData == null) {
+            return null;
+        }
+
+        return UserPostStatus.fromName(dbData);
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/exception/UserPostNotFoundException.java b/src/main/java/com/yello/server/domain/user/exception/UserPostNotFoundException.java
new file mode 100644
index 00000000..1a77ebd3
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/exception/UserPostNotFoundException.java
@@ -0,0 +1,13 @@
+package com.yello.server.domain.user.exception;
+
+import com.yello.server.global.common.ErrorCode;
+import com.yello.server.global.exception.CustomException;
+import lombok.Getter;
+
+@Getter
+public class UserPostNotFoundException extends CustomException {
+
+    public UserPostNotFoundException(ErrorCode error) {
+        super(error, "[UserPostNotFoundException] " + error.getMessage());
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/repository/UserPostCommentJpaRepository.java b/src/main/java/com/yello/server/domain/user/repository/UserPostCommentJpaRepository.java
new file mode 100644
index 00000000..9547bba5
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/repository/UserPostCommentJpaRepository.java
@@ -0,0 +1,24 @@
+package com.yello.server.domain.user.repository;
+
+import com.yello.server.domain.user.entity.UserPostComment;
+import com.yello.server.domain.user.entity.UserPostCommentStatus;
+import java.util.List;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+public interface UserPostCommentJpaRepository extends JpaRepository<UserPostComment, Long> {
+
+    @Query("SELECT count(upc) FROM UserPostComment upc WHERE upc.userPost.id = ?1 AND upc.status = ?2")
+    Long countByPostId(Long postId, UserPostCommentStatus status);
+
+    @Query("SELECT count(upc) FROM UserPostComment upc WHERE upc.userPost.id = ?1 AND upc.user.id = ?2 AND upc.status = ?3")
+    Long countByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status);
+
+    @Query("SELECT upc FROM UserPostComment upc WHERE upc.userPost.id = ?1 AND upc.status = ?2")
+    List<UserPostComment> findAllByPostId(Long postId, UserPostCommentStatus status, Pageable pageable);
+
+    @Query("SELECT upc FROM UserPostComment upc WHERE upc.userPost.id = ?1 AND upc.user.id = ?2 AND upc.status = ?3")
+    List<UserPostComment> findAllByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status,
+        Pageable pageable);
+}
diff --git a/src/main/java/com/yello/server/domain/user/repository/UserPostJpaRepository.java b/src/main/java/com/yello/server/domain/user/repository/UserPostJpaRepository.java
new file mode 100644
index 00000000..32530b73
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/repository/UserPostJpaRepository.java
@@ -0,0 +1,8 @@
+package com.yello.server.domain.user.repository;
+
+import com.yello.server.domain.user.entity.UserPost;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserPostJpaRepository extends JpaRepository<UserPost, Long> {
+
+}
diff --git a/src/main/java/com/yello/server/domain/user/repository/UserPostRepository.java b/src/main/java/com/yello/server/domain/user/repository/UserPostRepository.java
new file mode 100644
index 00000000..9d5fdb04
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/repository/UserPostRepository.java
@@ -0,0 +1,29 @@
+package com.yello.server.domain.user.repository;
+
+import com.yello.server.domain.user.entity.UserPost;
+import com.yello.server.domain.user.entity.UserPostComment;
+import com.yello.server.domain.user.entity.UserPostCommentStatus;
+import java.util.List;
+import java.util.Optional;
+import org.springframework.data.domain.Pageable;
+
+public interface UserPostRepository {
+
+    Long countPostCommentByPostId(Long postId, UserPostCommentStatus status);
+
+    Long countPostCommentByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status);
+
+    List<UserPostComment> findAllByPostId(Long postId, UserPostCommentStatus status, Pageable pageable);
+
+    List<UserPostComment> findAllByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status,
+        Pageable pageable);
+
+    UserPostComment getCommentById(Long userPostCommentId);
+
+    UserPostComment save(UserPostComment userPostComment);
+
+    UserPost getPostById(Long userPostId);
+
+    Optional<UserPost> findPostById(Long userPostId);
+
+}
diff --git a/src/main/java/com/yello/server/domain/user/repository/UserPostRepositoryImpl.java b/src/main/java/com/yello/server/domain/user/repository/UserPostRepositoryImpl.java
new file mode 100644
index 00000000..4de7d6bd
--- /dev/null
+++ b/src/main/java/com/yello/server/domain/user/repository/UserPostRepositoryImpl.java
@@ -0,0 +1,65 @@
+package com.yello.server.domain.user.repository;
+
+import static com.yello.server.global.common.ErrorCode.USER_POST_COMMENT_NOT_FOUND_EXCEPTION;
+import static com.yello.server.global.common.ErrorCode.USER_POST_NOT_FOUND_EXCEPTION;
+
+import com.yello.server.domain.user.entity.UserPost;
+import com.yello.server.domain.user.entity.UserPostComment;
+import com.yello.server.domain.user.entity.UserPostCommentStatus;
+import com.yello.server.domain.user.exception.UserPostNotFoundException;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Repository;
+
+@Repository
+@RequiredArgsConstructor
+public class UserPostRepositoryImpl implements UserPostRepository {
+
+    private final UserPostCommentJpaRepository userPostCommentJpaRepository;
+    private final UserPostJpaRepository userPostJpaRepository;
+
+    @Override
+    public Long countPostCommentByPostId(Long postId, UserPostCommentStatus status) {
+        return userPostCommentJpaRepository.countByPostId(postId, status);
+    }
+
+    @Override
+    public Long countPostCommentByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status) {
+        return userPostCommentJpaRepository.countByPostIdAndUserId(postId, userId, status);
+    }
+
+    @Override
+    public List<UserPostComment> findAllByPostId(Long postId, UserPostCommentStatus status, Pageable pageable) {
+        return userPostCommentJpaRepository.findAllByPostId(postId, status, pageable);
+    }
+
+    @Override
+    public List<UserPostComment> findAllByPostIdAndUserId(Long postId, Long userId, UserPostCommentStatus status,
+        Pageable pageable) {
+        return userPostCommentJpaRepository.findAllByPostIdAndUserId(postId, userId, status, pageable);
+    }
+
+    @Override
+    public UserPostComment getCommentById(Long userPostCommentId) {
+        return userPostCommentJpaRepository.findById(userPostCommentId)
+            .orElseThrow(() -> new UserPostNotFoundException(USER_POST_COMMENT_NOT_FOUND_EXCEPTION));
+    }
+
+    @Override
+    public UserPostComment save(UserPostComment userPostComment) {
+        return userPostCommentJpaRepository.save(userPostComment);
+    }
+
+    @Override
+    public UserPost getPostById(Long userPostId) {
+        return userPostJpaRepository.findById(userPostId)
+            .orElseThrow(() -> new UserPostNotFoundException(USER_POST_NOT_FOUND_EXCEPTION));
+    }
+
+    @Override
+    public Optional<UserPost> findPostById(Long userPostId) {
+        return userPostJpaRepository.findById(userPostId);
+    }
+}
diff --git a/src/main/java/com/yello/server/domain/user/service/UserService.java b/src/main/java/com/yello/server/domain/user/service/UserService.java
index 4fec5687..5daa1214 100644
--- a/src/main/java/com/yello/server/domain/user/service/UserService.java
+++ b/src/main/java/com/yello/server/domain/user/service/UserService.java
@@ -17,29 +17,40 @@
 import com.yello.server.domain.user.dto.request.UserDataUpdateRequest;
 import com.yello.server.domain.user.dto.request.UserDeleteReasonRequest;
 import com.yello.server.domain.user.dto.request.UserDeviceTokenRequest;
+import com.yello.server.domain.user.dto.request.UserPostCommentUpdateRequest;
 import com.yello.server.domain.user.dto.request.UserUpdateRequest;
 import com.yello.server.domain.user.dto.response.UserDataResponse;
 import com.yello.server.domain.user.dto.response.UserDetailResponse;
 import com.yello.server.domain.user.dto.response.UserDetailV2Response;
+import com.yello.server.domain.user.dto.response.UserPostCommentResponse;
+import com.yello.server.domain.user.dto.response.UserPostCommentVO;
 import com.yello.server.domain.user.dto.response.UserResponse;
 import com.yello.server.domain.user.dto.response.UserSubscribeDetailResponse;
 import com.yello.server.domain.user.entity.Gender;
 import com.yello.server.domain.user.entity.User;
 import com.yello.server.domain.user.entity.UserData;
 import com.yello.server.domain.user.entity.UserDataType;
+import com.yello.server.domain.user.entity.UserPost;
+import com.yello.server.domain.user.entity.UserPostComment;
+import com.yello.server.domain.user.entity.UserPostCommentStatus;
 import com.yello.server.domain.user.exception.UserConflictException;
 import com.yello.server.domain.user.exception.UserException;
 import com.yello.server.domain.user.repository.UserDataRepository;
+import com.yello.server.domain.user.repository.UserPostRepository;
 import com.yello.server.domain.user.repository.UserRepository;
 import com.yello.server.domain.vote.repository.VoteRepository;
 import com.yello.server.global.common.dto.EmptyObject;
 import com.yello.server.global.common.util.ConstantUtil;
+import jakarta.annotation.Nullable;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Optional;
 import lombok.Builder;
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -55,6 +66,7 @@ public class UserService {
     private final UserAdminRepository userAdminRepository;
     private final UserDataRepository userDataRepository;
     private final UserGroupRepository userGroupRepository;
+    private final UserPostRepository userPostRepository;
     private final UserRepository userRepository;
     private final VoteRepository voteRepository;
 
@@ -194,4 +206,59 @@ public void updateUserData(Long userId, UserDataType tag, UserDataUpdateRequest
             userDataRepository.save(UserData.of(tag, savedValue, user));
         }
     }
+
+    @Transactional
+    public void updatePostComment(@Nullable Long userId, UserPostCommentUpdateRequest request) {
+        Optional<User> user = userRepository.findById(userId);
+        UserPost userPost = userPostRepository.getPostById(request.postId());
+        UserPostCommentStatus status = UserPostCommentStatus.fromCode(request.status());
+
+        if (request.id() == null) {
+            userPostRepository.save(UserPostComment.builder()
+                .userPost(userPost)
+                .user(user.orElse(null))
+                .status(status)
+                .userName(user.isPresent() ? user.get().getName() : request.userName())
+                .yelloId(user.isPresent() ? user.get().getYelloId() : request.yelloId())
+                .title(request.title())
+                .subtitle(request.subtitle())
+                .content(request.content())
+                .build());
+        } else {
+            UserPostComment userPostComment = userPostRepository.getCommentById(request.id());
+            userPostComment.update(request, userPost, user.orElse(null), status);
+        }
+    }
+
+    public UserPostCommentResponse getUserPostComment(@Nullable Long userId, Long postId, Pageable pageable) {
+        // exception
+        userPostRepository.getPostById(postId);
+
+        // logic
+        Long totalCount;
+        long pageSize = pageable.getPageSize();
+        List<UserPostCommentVO> userPostCommentList = new ArrayList<>();
+
+        if (userId == null) {
+            totalCount = userPostRepository.countPostCommentByPostId(postId, UserPostCommentStatus.ACTIVE);
+            userPostCommentList.addAll(
+                userPostRepository.findAllByPostId(postId, UserPostCommentStatus.ACTIVE, pageable)
+                    .stream().map(UserPostCommentVO::of).toList()
+            );
+        } else {
+            totalCount = userPostRepository.countPostCommentByPostIdAndUserId(postId, userId,
+                UserPostCommentStatus.ACTIVE);
+            userPostCommentList.addAll(
+                userPostRepository.findAllByPostIdAndUserId(postId, userId, UserPostCommentStatus.ACTIVE, pageable)
+                    .stream().map(UserPostCommentVO::of).toList()
+            );
+        }
+
+        return UserPostCommentResponse.builder()
+            .pageCount(totalCount % pageSize == 0 ? totalCount / pageSize : totalCount / pageSize + 1)
+            .totalCount(totalCount)
+            .postCommentList(userPostCommentList)
+            .build();
+    }
+
 }
diff --git a/src/main/java/com/yello/server/global/common/ErrorCode.java b/src/main/java/com/yello/server/global/common/ErrorCode.java
index f27e7a9e..a34de675 100644
--- a/src/main/java/com/yello/server/global/common/ErrorCode.java
+++ b/src/main/java/com/yello/server/global/common/ErrorCode.java
@@ -112,6 +112,8 @@ public enum ErrorCode {
     NOT_FOUND_EVENT_REWARD_EXCEPTION(NOT_FOUND, "해당 EventReward가 존재하지 않습니다."),
     EMPTY_QUERY_STRING_EXCEPTION(NOT_FOUND, "query string 값이 null 입니다."),
     STATISTICS_NOT_FOUND_EXCEPTION(NOT_FOUND, "해당 통계가 존재하지 않습니다."),
+    USER_POST_NOT_FOUND_EXCEPTION(NOT_FOUND, "해당 포스트가 존재하지 않습니다."),
+    USER_POST_COMMENT_NOT_FOUND_EXCEPTION(NOT_FOUND, "해당 댓글이 존재하지 않습니다."),
 
     /**
      * 409 CONFLICT
diff --git a/src/main/java/com/yello/server/global/common/SuccessCode.java b/src/main/java/com/yello/server/global/common/SuccessCode.java
index d6ea3b9c..e2669038 100644
--- a/src/main/java/com/yello/server/global/common/SuccessCode.java
+++ b/src/main/java/com/yello/server/global/common/SuccessCode.java
@@ -65,6 +65,8 @@ public enum SuccessCode {
     VERIFY_ADMOB_SSV_SUCCESS(OK, "Admob ssv 검증에 성공하였습니다."),
     GET_IS_POSSIBLE_ADMOB_SUCCESS(OK, "광고 보고 포인트 얻기 가능 여부 조회에 성공했습니다."),
     READ_USER_GROUP_SCHOOL_ATTACK_STATISTICS_SUCCESS(OK, "School Attack 통계 조회에 성공하였습니다."),
+    GET_USER_POST_COMMENT_SUCCESS(OK, "댓글 조회에 성공하였습니다."),
+    POST_USER_POST_COMMENT_SUCCESS(OK, "댓글 작성에 성공하였습니다."),
 
     /**
      * 201 CREATED
diff --git a/src/main/java/com/yello/server/global/common/annotation/AccessTokenUser.java b/src/main/java/com/yello/server/global/common/annotation/AccessTokenUser.java
index fc204ea0..40daadf1 100644
--- a/src/main/java/com/yello/server/global/common/annotation/AccessTokenUser.java
+++ b/src/main/java/com/yello/server/global/common/annotation/AccessTokenUser.java
@@ -5,6 +5,15 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+/**
+ * Resolves SecurityContextHolder.getContext().getAuthentication().getDetails();
+ * <p>
+ * if valid request doesn't include Authorization field in header, return null
+ *
+ * @see com.yello.server.global.common.annotation.AccessTokenUserResolver
+ * @see com.yello.server.domain.authorization.filter.JwtFilter
+ * @see com.yello.server.domain.authorization.filter.JwtExceptionFilter
+ */
 @Target(ElementType.PARAMETER)
 @Retention(RetentionPolicy.RUNTIME)
 public @interface AccessTokenUser {
diff --git a/src/main/java/com/yello/server/global/common/annotation/AccessTokenUserResolver.java b/src/main/java/com/yello/server/global/common/annotation/AccessTokenUserResolver.java
index 37168647..720c0716 100644
--- a/src/main/java/com/yello/server/global/common/annotation/AccessTokenUserResolver.java
+++ b/src/main/java/com/yello/server/global/common/annotation/AccessTokenUserResolver.java
@@ -2,7 +2,9 @@
 
 import com.yello.server.domain.user.entity.User;
 import org.springframework.core.MethodParameter;
+import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.web.authentication.WebAuthenticationDetails;
 import org.springframework.stereotype.Component;
 import org.springframework.web.bind.support.WebDataBinderFactory;
 import org.springframework.web.context.request.NativeWebRequest;
@@ -23,8 +25,12 @@ public boolean supportsParameter(MethodParameter parameter) {
     @Override
     public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
         NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
-        return SecurityContextHolder.getContext()
-            .getAuthentication()
-            .getDetails();
+        final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+
+        if (authentication.getDetails() instanceof WebAuthenticationDetails) {
+            return null;
+        }
+        
+        return authentication.getDetails();
     }
 }
diff --git a/src/main/java/com/yello/server/global/exception/ControllerExceptionAdvice.java b/src/main/java/com/yello/server/global/exception/ControllerExceptionAdvice.java
index ff643451..b42507fd 100644
--- a/src/main/java/com/yello/server/global/exception/ControllerExceptionAdvice.java
+++ b/src/main/java/com/yello/server/global/exception/ControllerExceptionAdvice.java
@@ -41,6 +41,7 @@
 import com.yello.server.domain.user.exception.UserConflictException;
 import com.yello.server.domain.user.exception.UserException;
 import com.yello.server.domain.user.exception.UserNotFoundException;
+import com.yello.server.domain.user.exception.UserPostNotFoundException;
 import com.yello.server.domain.vote.exception.VoteForbiddenException;
 import com.yello.server.domain.vote.exception.VoteNotFoundException;
 import com.yello.server.global.common.dto.BaseResponse;
@@ -198,7 +199,8 @@ public ResponseEntity<BaseResponse> ForbiddenException(CustomException exception
         AdminConfigurationNotFoundException.class,
         EventNotFoundException.class,
         EventBadRequestException.class,
-        StatisticsNotFoundException.class
+        StatisticsNotFoundException.class,
+        UserPostNotFoundException.class
     })
     public ResponseEntity<BaseResponse> NotFoundException(CustomException exception) {
         return ResponseEntity.status(NOT_FOUND)
diff --git a/src/main/resources/static/docs/index.html b/src/main/resources/static/docs/index.html
index f89c7eb4..38b6d928 100644
--- a/src/main/resources/static/docs/index.html
+++ b/src/main/resources/static/docs/index.html
@@ -454,7 +454,6 @@ <h1>YELL:O API 문서</h1>
 <li><a href="#_vote_api">Vote API</a></li>
 <li><a href="#_friend_api">Friend API</a></li>
 <li><a href="#_purchase_api">Purchase API</a></li>
-<li><a href="#_pay_api">Pay API</a></li>
 <li><a href="#_notice_api">Notice API</a></li>
 <li><a href="#_event_api">Event API</a></li>
 </ul>
@@ -619,23 +618,6 @@ <h3 id="_purchase_api"><a class="link" href="#_purchase_api">Purchase API</a></h
 </div>
 </div>
 <div class="sect2">
-<h3 id="_pay_api"><a class="link" href="#_pay_api">Pay API</a></h3>
-<div class="ulist">
-<ul>
-<li>
-<p>@Deprecated at 2024.03</p>
-<div class="ulist">
-<ul>
-<li>
-<p><a href="pay.html">결제 전환율 체크</a></p>
-</li>
-</ul>
-</div>
-</li>
-</ul>
-</div>
-</div>
-<div class="sect2">
 <h3 id="_notice_api"><a class="link" href="#_notice_api">Notice API</a></h3>
 <div class="ulist">
 <ul>
@@ -659,7 +641,7 @@ <h3 id="_event_api"><a class="link" href="#_event_api">Event API</a></h3>
 <p>🆕 <a href="reward-event.html">이벤트 보상, 2024-02-07</a></p>
 </li>
 <li>
-<p>🆕 <a href="reward-admob.html">광고보고 보상 얻기, 2024-02-11</a></p>
+<p>🆕 <a href="reward-admob.html">광고보고 보상 얻기, 2024-02-19</a></p>
 </li>
 <li>
 <p>🆕 <a href="check-is-possible-admob.html">광고보고 보상 얻기 가능 여부 조회, 2024-02-17</a></p>
diff --git a/src/main/resources/static/docs/reward-admob.html b/src/main/resources/static/docs/reward-admob.html
index 42d12596..61ecd115 100644
--- a/src/main/resources/static/docs/reward-admob.html
+++ b/src/main/resources/static/docs/reward-admob.html
@@ -450,7 +450,6 @@ <h3 id="_요청">요청</h3>
 <pre class="highlight nowrap"><code class="language-http" data-lang="http">POST /api/v1/admob/reward HTTP/1.1
 Content-Type: application/json;charset=UTF-8
 Authorization: Bearer your-access-token
-IdempotencyKey: 87552f7c-9b62-4b12-b567-1bd062b09288
 Content-Length: 134
 
 {
@@ -474,7 +473,7 @@ <h3 id="_request_body">request body</h3>
 <p>ADMOB_POINT : 광고 보고 10 포인트</p>
 </li>
 <li>
-<p>ADMOB_MULTIPLE_POINT : 광고 보고 포인트 2배 이벤트</p>
+<p>ADMOB_MULTIPLE_POINT : 투표 후, 광고 보고 포인트 2배 이벤트</p>
 </li>
 </ul>
 </div>
@@ -529,16 +528,6 @@ <h3 id="_note">NOTE</h3>
 <div class="ulist">
 <ul>
 <li>
-<p>Header에 무작위한 UUID4 값을 넣어주세요</p>
-<div class="ulist">
-<ul>
-<li>
-<p>예시) IdempotencyKey: 0397b5f3-ecdc-47d6-b5d7-2b1afcf00e87</p>
-</li>
-</ul>
-</div>
-</li>
-<li>
 <p>주의사항</p>
 <div class="ulist">
 <ul>
@@ -566,6 +555,9 @@ <h3 id="_changelog">CHANGELOG</h3>
 <div class="ulist">
 <ul>
 <li>
+<p>2024.02.19 API ENUM, 명세서 수정</p>
+</li>
+<li>
 <p>2024.02.11 릴리즈</p>
 </li>
 </ul>
diff --git a/src/test/java/com/yello/server/domain/pay/medium/PayControllerTest.java b/src/test/java/com/yello/server/domain/pay/medium/PayControllerTest.java
deleted file mode 100644
index 045da940..00000000
--- a/src/test/java/com/yello/server/domain/pay/medium/PayControllerTest.java
+++ /dev/null
@@ -1,103 +0,0 @@
-package com.yello.server.domain.pay.medium;
-
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.springframework.restdocs.mockmvc.MockMvcRestDocumentation.document;
-import static org.springframework.restdocs.operation.preprocess.Preprocessors.modifyHeaders;
-import static org.springframework.restdocs.operation.preprocess.Preprocessors.prettyPrint;
-import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;
-import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.yello.server.domain.authorization.filter.JwtExceptionFilter;
-import com.yello.server.domain.authorization.filter.JwtFilter;
-import com.yello.server.domain.pay.controller.PayController;
-import com.yello.server.domain.pay.dto.request.PayCountRequest;
-import com.yello.server.domain.pay.service.PayService;
-import com.yello.server.global.exception.ControllerExceptionAdvice;
-import com.yello.server.util.WithAccessTokenUser;
-import org.junit.jupiter.api.DisplayName;
-import org.junit.jupiter.api.DisplayNameGeneration;
-import org.junit.jupiter.api.DisplayNameGenerator.ReplaceUnderscores;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.autoconfigure.restdocs.AutoConfigureRestDocs;
-import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
-import org.springframework.boot.test.mock.mockito.MockBean;
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.FilterType;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.MediaType;
-import org.springframework.restdocs.mockmvc.RestDocumentationRequestBuilders;
-import org.springframework.restdocs.operation.preprocess.OperationPreprocessor;
-import org.springframework.restdocs.operation.preprocess.Preprocessors;
-import org.springframework.test.web.servlet.MockMvc;
-import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
-
-@AutoConfigureRestDocs
-@WebMvcTest(
-    controllers = PayController.class,
-    excludeFilters = {
-        @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = JwtFilter.class),
-        @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = JwtExceptionFilter.class),
-        @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = ControllerExceptionAdvice.class)
-    })
-@WithAccessTokenUser
-@DisplayNameGeneration(ReplaceUnderscores.class)
-@DisplayName("Pay 컨트롤러에서")
-class PayControllerTest {
-
-    final OperationPreprocessor[] excludeRequestHeaders = new OperationPreprocessor[]{
-        prettyPrint(),
-        modifyHeaders().remove("X-CSRF-TOKEN"),
-        modifyHeaders().remove(HttpHeaders.HOST)
-    };
-
-    final OperationPreprocessor[] excludeResponseHeaders = new OperationPreprocessor[]{
-        prettyPrint(),
-        modifyHeaders().remove("X-Content-Type-Options"),
-        modifyHeaders().remove("X-XSS-Protection"),
-        modifyHeaders().remove("X-Frame-Options"),
-        modifyHeaders().remove(HttpHeaders.CACHE_CONTROL),
-        modifyHeaders().remove(HttpHeaders.PRAGMA),
-        modifyHeaders().remove(HttpHeaders.EXPIRES),
-        modifyHeaders().remove(HttpHeaders.CONTENT_LENGTH),
-    };
-
-    @Autowired
-    private MockMvc mockMvc;
-
-    @Autowired
-    private ObjectMapper objectMapper;
-
-    @MockBean
-    private PayService payService;
-
-    @Test
-    void 결제_전환율_체크에_성공합니다() throws Exception {
-        // given
-        final PayCountRequest request = PayCountRequest.builder()
-            .index(1)
-            .build();
-
-        // when
-        // then
-        mockMvc.perform(RestDocumentationRequestBuilders.post("/api/v1/pay")
-                .with(csrf().asHeader())
-                .header(HttpHeaders.AUTHORIZATION, "Bearer your-access-token")
-                .contentType(MediaType.APPLICATION_JSON)
-                .content(objectMapper.writeValueAsString(request)))
-            .andDo(print())
-            .andDo(document("api/v1/pay/postPayCount",
-                Preprocessors.preprocessRequest(excludeRequestHeaders),
-                Preprocessors.preprocessResponse(excludeResponseHeaders)
-            ))
-            .andExpect(MockMvcResultMatchers.status().isOk());
-
-        verify(payService, times(1))
-            .postPayCount(anyLong(), anyInt());
-    }
-
-}