diff --git a/module-api/src/main/java/com/mile/controller/user/facade/AuthFacade.java b/module-api/src/main/java/com/mile/controller/user/facade/AuthFacade.java
index 690b9eb0..0a5f92d1 100644
--- a/module-api/src/main/java/com/mile/controller/user/facade/AuthFacade.java
+++ b/module-api/src/main/java/com/mile/controller/user/facade/AuthFacade.java
@@ -65,7 +65,7 @@ private LoginSuccessResponse getTokenDto(
             if (userService.isExistingUser(userResponse.socialId(), userResponse.socialType())) {
                 return getTokenByUserId(userService.getBySocialId(userResponse.socialId(), userResponse.socialType()).getId());
             } else {
-                Long id = userService.createuser(userResponse.socialId(), userResponse.socialType(), userResponse.email());
+                Long id = userService.createUser(userResponse.socialId(), userResponse.socialType(), userResponse.email());
                 return getTokenByUserId(id);
             }
         } catch (DataIntegrityViolationException e) {
diff --git a/module-api/src/test/java/com/mile/controller/MoimControllerTest.java b/module-api/src/test/java/com/mile/controller/MoimControllerTest.java
index 5d18e818..89727cdf 100644
--- a/module-api/src/test/java/com/mile/controller/MoimControllerTest.java
+++ b/module-api/src/test/java/com/mile/controller/MoimControllerTest.java
@@ -9,6 +9,8 @@
 import com.mile.moim.service.dto.MoimInfoModifyRequest;
 import com.mile.moim.service.dto.TopicCreateRequest;
 import com.mile.moim.service.dto.WriterMemberJoinRequest;
+import com.mile.post.service.PostService;
+import com.mile.post.service.dto.PostCreateRequest;
 import com.mile.user.domain.User;
 import com.mile.user.repository.UserRepository;
 import com.mile.utils.SecureUrlUtil;
@@ -54,6 +56,9 @@ public class MoimControllerTest {
     @Autowired
     private MoimService moimService;
 
+    @Autowired
+    private PostService postService;
+
     @Autowired
     private ObjectMapper objectMapper;
 
@@ -81,6 +86,7 @@ public void aTestForDummyUser() throws JsonProcessingException {
     테스트 이전 더미 모임 쌓기
      */
     @Test
+    @Transactional
     @DisplayName("더미 모임 생성")
     public void bSaveNewMoimAndGetMoimId() {
         String randomTagString = UUID.randomUUID().toString().substring(0, 3);
@@ -95,7 +101,13 @@ public void bSaveNewMoimAndGetMoimId() {
                 randomTagString,
                 randomString
         );
+
+        TopicCreateRequest topicCreateRequest = new TopicCreateRequest(randomString, randomTagString, randomTagString);
         MOIM_ID = moimService.createMoim(USER_ID, createRequest).moimId();
+        String topicId = secureUrlUtil
+                .encodeUrl(Long.parseLong(moimService.createTopic(secureUrlUtil.decodeUrl(MOIM_ID), USER_ID, topicCreateRequest)));
+        PostCreateRequest postCreateRequest =new PostCreateRequest(MOIM_ID, topicId, randomString, randomString, randomString, false);
+        postService.createPost(USER_ID, postCreateRequest);
     }
 
     /*
@@ -435,7 +447,6 @@ public void createTopicTest() throws Exception {
 
     @Test
     @DisplayName("글모임이 정상적으로 삭제된다.")
-    @Transactional
     public void zdeleteMoimTest() throws Exception {
         //given
         String token = "Bearer " + jwtTokenProvider.issueAccessToken(USER_ID);
diff --git a/module-common/src/main/java/com/mile/exception/message/ErrorMessage.java b/module-common/src/main/java/com/mile/exception/message/ErrorMessage.java
index 944513a7..8ab516e7 100644
--- a/module-common/src/main/java/com/mile/exception/message/ErrorMessage.java
+++ b/module-common/src/main/java/com/mile/exception/message/ErrorMessage.java
@@ -12,7 +12,7 @@ public enum ErrorMessage {
     Not Found
      */
     USER_NOT_FOUND(40400, "해당 유저는 존재하지 않습니다."),
-    REFRESH_TOKEN_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 유저의 리프레시 토큰이 존재하지 않습니다."),
+    REFRESH_TOKEN_NOT_FOUND(40401, "해당 유저의 리프레시 토큰이 존재하지 않습니다."),
     POST_NOT_FOUND(40402, "해당 글은 존재하지 않습니다."),
     MOIM_NOT_FOUND(40403, "해당 글모임이 존재하지 않습니다."),
     CONTENT_NOT_FOUND(40404, "해당 모임의 주제가 존재하지 않습니다."),
@@ -22,7 +22,7 @@ public enum ErrorMessage {
     TOPIC_NOT_FOUND(40408, "해당 글감이 존재하지 않습니다."),
     KEYWORD_NOT_FOUND(40409, "해당 글모임의 글감 키워드가 존재하지 않습니다."),
     WRITERS_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 모임의 작가가 요청한 개수 이상 존재하지 않습니다"),
-    WRITER_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 작가는 존재하지 않습니다."),
+    WRITER_NOT_FOUND(40411, "해당 작가는 존재하지 않습니다."),
     RECOMMEND_NOT_FOUND(40412, "추천 글감을 받아오는데 실패했습니다."),
     MOIM_TOPIC_NOT_FOUND(40413, "해당 모임의 글감이 존재하지 않습니다."),
     TOPIC_POST_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 글감의 글이 존재하지 않습니다."),
@@ -33,14 +33,14 @@ public enum ErrorMessage {
     Bad Request
      */
     ENUM_VALUE_BAD_REQUEST(HttpStatus.BAD_REQUEST.value(), "요청한 값이 유효하지 않습니다."),
-    AUTHENTICATION_CODE_EXPIRED(HttpStatus.BAD_REQUEST.value(), "인가 코드가 만료되었습니다."),
+    AUTHENTICATION_CODE_EXPIRED(40001, "인가 코드가 만료되었습니다."),
     SOCIAL_TYPE_BAD_REQUEST(HttpStatus.BAD_REQUEST.value(), "로그인 요청이 유효하지 않습니다."),
     INVALID_BUCKET_PREFIX(HttpStatus.BAD_REQUEST.value(), "유효하지 않는 S3 버킷 디렉터리 이름입니다."),
     VALIDATION_REQUEST_MISSING_EXCEPTION(HttpStatus.BAD_REQUEST.value(), "요청 값이 유효하지 않습니다."),
     VALIDATION_REQUEST_NULL_OR_BLANK_EXCEPTION(40005,"요청 값이 비어있습니다."),
     VALIDATION_REQUEST_LENGTH_EXCEPTION(40006,"요청 값이 길이를 초과했습니다."),
     BEARER_LOST_ERROR(HttpStatus.BAD_REQUEST.value(), "토큰의 요청에 Bearer이 담겨 있지 않습니다."),
-    POST_NOT_TEMPORARY_ERROR(HttpStatus.BAD_REQUEST.value(), "해당 글은 임시저장 글이 아닙니다."),
+    POST_NOT_TEMPORARY_ERROR(40008, "해당 글은 임시저장 글이 아닙니다."),
     POST_TEMPORARY_ERROR(HttpStatus.BAD_REQUEST.value(), "해당 글은 임시저장글입니다."),
     PATH_PARAMETER_INVALID_ERROR(HttpStatus.BAD_REQUEST.value(), "요청 URI를 다시 확인해주세요."),
     REQUEST_URL_WRONG_ERROR(HttpStatus.BAD_REQUEST.value(), "요청 URL를 다시 확인해주세요"),
@@ -67,7 +67,7 @@ public enum ErrorMessage {
     /*
     Forbidden
      */
-    USER_AUTHENTICATE_ERROR(40300, "해당 사용자는 모임에 접근 권한이 없습니다."),
+    USER_MOIM_AUTHENTICATE_ERROR(40300, "해당 사용자는 모임에 접근 권한이 없습니다."),
     REPLY_USER_FORBIDDEN(40301, "사용자에게 해당 대댓글에 대한 권한이 없습니다."),
     WRITER_AUTHENTICATE_ERROR(40302, "해당 사용자는 글 생성/수정/삭제 권한이 없습니다."),
     MOIM_OWNER_AUTHENTICATION_ERROR(40303, "사용자는 해당 모임의 모임장이 아닙니다."),
diff --git a/module-domain/src/main/java/com/mile/moim/service/MoimService.java b/module-domain/src/main/java/com/mile/moim/service/MoimService.java
index f577de34..a56bd9b8 100644
--- a/module-domain/src/main/java/com/mile/moim/service/MoimService.java
+++ b/module-domain/src/main/java/com/mile/moim/service/MoimService.java
@@ -225,8 +225,12 @@ public void modifyMoimInforation(
             final Long userId,
             final MoimInfoModifyRequest modifyRequest
     ) {
-        checkMoimNameUnique(modifyRequest.moimTitle());
         Moim moim = moimRetriever.findById(moimId);
+
+        if (!moim.getName().equals(modifyRequest.moimTitle())) {
+            validateMoimName(modifyRequest.moimTitle());
+        }
+
         moimRetriever.authenticateOwnerOfMoim(moim, userRetriever.findById(userId));
         moim.modifyMoimInfo(modifyRequest);
     }
diff --git a/module-domain/src/main/java/com/mile/post/service/PostRetriever.java b/module-domain/src/main/java/com/mile/post/service/PostRetriever.java
index 8c6179ed..74fcd2a4 100644
--- a/module-domain/src/main/java/com/mile/post/service/PostRetriever.java
+++ b/module-domain/src/main/java/com/mile/post/service/PostRetriever.java
@@ -40,7 +40,6 @@ public Post findById(
 
     }
 
-
     public String getTemporaryPostExist(
             final Moim moim,
             final WriterName writerName
@@ -99,7 +98,7 @@ public void authenticateUserOfMoim(
             final boolean isUserInMoim
     ) {
         if (!isUserInMoim) {
-            throw new ForbiddenException(ErrorMessage.USER_AUTHENTICATE_ERROR);
+            throw new ForbiddenException(ErrorMessage.USER_MOIM_AUTHENTICATE_ERROR);
         }
     }
 
@@ -131,14 +130,6 @@ public boolean isWriterOfPost(final Post post, final WriterName writerName) {
         return post.getWriterName().equals(writerName);
     }
 
-    public void authenticateWriterOfMoim(
-            final Long userId,
-            final Long moimId
-    ) {
-        if (!writerNameRetriever.isUserInMoim(moimId, userId)) {
-            throw new ForbiddenException(ErrorMessage.WRITER_AUTHENTICATE_ERROR);
-        }
-    }
 
     public MoimCuriousPostListResponse getMostCuriousPostByMoim(final Moim moim) {
         List<Post> postList = getPostHaveCuriousCount(postRepository.findTop2ByMoimOrderByCuriousCountDesc(moim));
diff --git a/module-domain/src/main/java/com/mile/post/service/PostService.java b/module-domain/src/main/java/com/mile/post/service/PostService.java
index 1cc2d1c3..eabc117c 100644
--- a/module-domain/src/main/java/com/mile/post/service/PostService.java
+++ b/module-domain/src/main/java/com/mile/post/service/PostService.java
@@ -176,7 +176,7 @@ public TemporaryPostGetResponse getTemporaryPost(
         Post post = postRetriever.findById(postId);
         Topic selectedTopic = post.getTopic();
         Moim moim = selectedTopic.getMoim();
-        postRetriever.authenticateUserWithPost(post, userId);
+        postRetriever.authenticateWriter(postId, writerNameRetriever.findByMoimAndUser(moim.getId(), userId));
         isPostTemporary(post);
         List<ContentWithIsSelectedResponse> contentResponse = topicService.getContentsWithIsSelectedFromMoim(moim.getId(), selectedTopic.getId());
         return TemporaryPostGetResponse.of(post, contentResponse);
@@ -224,7 +224,6 @@ public WriterNameResponse createPost(
             final Long userId,
             final PostCreateRequest postCreateRequest
     ) {
-        postRetriever.authenticateUserOfMoim(writerNameRetriever.isUserInMoim(decodeUrlToLong(postCreateRequest.moimId()), userId));
         WriterName writerName = writerNameRetriever.findByMoimAndUser(decodeUrlToLong(postCreateRequest.moimId()), userId);
         Topic topic = topicRetriever.findById(decodeUrlToLong(postCreateRequest.topicId()));
         String postIdUrl = postCreator.create(postCreateRequest, topic, writerName);
@@ -237,7 +236,6 @@ public void createTemporaryPost(
             final Long userId,
             final TemporaryPostCreateRequest temporaryPostCreateRequest
     ) {
-        postRetriever.authenticateWriterOfMoim(userId, decodeUrlToLong(temporaryPostCreateRequest.moimId()));
         WriterName writerName = writerNameRetriever.findByMoimAndUser(secureUrlUtil.decodeUrl(temporaryPostCreateRequest.moimId()), userId);
         postRemover.deleteTemporaryPosts(topicRetriever.findById(secureUrlUtil.decodeUrl(temporaryPostCreateRequest.topicId())).getMoim(), writerName);
         Topic topic = topicRetriever.findById(decodeUrlToLong(temporaryPostCreateRequest.topicId()));
@@ -250,7 +248,7 @@ public WriterNameResponse putTemporaryToFixedPost(final Long userId, final PostP
         WriterName writerName = writerNameRetriever.findByMoimAndUser(post.getTopic().getMoim().getId(), userId);
         postRetriever.authenticateWriter(postId, writerName);
         isPostTemporary(post);
-        postUpdator.updateTemporaryPost(postId, post.getTopic(), request);
+        postUpdator.updateTemporaryPost(post, post.getTopic(), request);
         return WriterNameResponse.of(post.getIdUrl(), writerName.getName());
     }
 
diff --git a/module-domain/src/main/java/com/mile/post/service/PostUpdator.java b/module-domain/src/main/java/com/mile/post/service/PostUpdator.java
index 55ff603b..17f1200e 100644
--- a/module-domain/src/main/java/com/mile/post/service/PostUpdator.java
+++ b/module-domain/src/main/java/com/mile/post/service/PostUpdator.java
@@ -28,11 +28,10 @@ public void update(
     }
 
     public void updateTemporaryPost(
-            final Long postId,
+            final Post post,
             final Topic topic,
             final PostPutRequest putRequest
     ) {
-        Post post = postRetriever.findById(postId);
         post.setTemporary(false);
         post.updateCratedAt(LocalDateTime.now());
         update(post, topic, putRequest);
diff --git a/module-domain/src/main/java/com/mile/topic/repository/TopicRepository.java b/module-domain/src/main/java/com/mile/topic/repository/TopicRepository.java
index a63e3e36..1e4a5728 100644
--- a/module-domain/src/main/java/com/mile/topic/repository/TopicRepository.java
+++ b/module-domain/src/main/java/com/mile/topic/repository/TopicRepository.java
@@ -9,6 +9,7 @@
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 import org.springframework.lang.NonNull;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 
@@ -22,6 +23,7 @@ public interface TopicRepository extends JpaRepository<Topic, Long>, TopicReposi
 
     Page<Topic> findByMoimIdOrderByCreatedAtDesc(Long moimId, Pageable pageable);
 
+    @Transactional
     @Modifying
     @Query("DELETE FROM Topic t where t.moim = :moim")
     void deleteByMoim(@Param("moim") Moim moim);
diff --git a/module-domain/src/main/java/com/mile/topic/service/TopicRemover.java b/module-domain/src/main/java/com/mile/topic/service/TopicRemover.java
index 00552c1c..ea08f73d 100644
--- a/module-domain/src/main/java/com/mile/topic/service/TopicRemover.java
+++ b/module-domain/src/main/java/com/mile/topic/service/TopicRemover.java
@@ -20,19 +20,12 @@ public class TopicRemover {
     private final TopicRepository topicRepository;
 
     public void deleteTopic(
-            final Topic topic,
-            final User user
+            final Topic topic
     ) {
         deletePostsOfTopic(topic);
         topicRepository.deleteById(topic.getId());
     }
 
-    public void deleteTopics(
-            final List<Topic> topics
-    ) {
-
-    }
-
     private void deletePostsOfTopic(
             final Topic topic
     ) {
diff --git a/module-domain/src/main/java/com/mile/topic/service/TopicService.java b/module-domain/src/main/java/com/mile/topic/service/TopicService.java
index 2c4a3d45..98084a60 100644
--- a/module-domain/src/main/java/com/mile/topic/service/TopicService.java
+++ b/module-domain/src/main/java/com/mile/topic/service/TopicService.java
@@ -27,7 +27,6 @@ public class TopicService {
     private final TopicCreator topicCreator;
     private final UserService userService;
 
-
     public List<ContentWithIsSelectedResponse> getContentsWithIsSelectedFromMoim(
             final Long moimId,
             final Long selectedTopicId
@@ -42,23 +41,6 @@ public PostListInTopicResponse getPostListByTopic(
         return topicRetriever.getPostListByTopic(topicId, lastPostId);
     }
 
-    public MoimTopicInfoListResponse getTopicListFromMoim(
-            final Long moimId,
-            final int page
-    ) {
-        return topicRetriever.getTopicListFromMoim(moimId, page);
-    }
-
-    public MoimTopicInfoListResponse getTopicResponsesFromPage(Page<Topic> topicPage, final Long moimId) {
-        return topicRetriever.getTopicResponsesFromPage(topicPage, moimId);
-    }
-
-    public Long getNumberOfTopicFromMoim(
-            final Long moimId
-    ) {
-        return topicRetriever.getNumberOfTopicFromMoim(moimId);
-    }
-
     public TopicDetailResponse getTopicDetail(
             final Long userId,
             final Long topicId
@@ -66,13 +48,6 @@ public TopicDetailResponse getTopicDetail(
         return topicRetriever.getTopicDetail(userId, topicId);
     }
 
-    public Long createTopicOfMoim(
-            final Moim moim,
-            final TopicCreateRequest createRequest
-    ) {
-        return topicCreator.createTopicOfMoim(moim, createRequest);
-    }
-
     @Transactional
     public void deleteTopic(
             final Long userId,
@@ -82,7 +57,7 @@ public void deleteTopic(
         User user = userService.findById(userId);
         topicRetriever.authenticateTopicWithUser(topic, user);
         topicRetriever.checkSingleTopicDeletion(topic);
-        topicRemover.deleteTopic(topic, user);
+        topicRemover.deleteTopic(topic);
     }
 
     public void putTopic(
diff --git a/module-domain/src/main/java/com/mile/user/service/UserService.java b/module-domain/src/main/java/com/mile/user/service/UserService.java
index 30d36bab..a4925f45 100644
--- a/module-domain/src/main/java/com/mile/user/service/UserService.java
+++ b/module-domain/src/main/java/com/mile/user/service/UserService.java
@@ -28,7 +28,7 @@ public boolean isExistingUser(final String socialId, final SocialType socialType
         return userRetriever.isExistingUser(socialId, socialType);
     }
 
-    public Long createuser(final String socialId, final SocialType socialType, final String email) {
+    public Long createUser(final String socialId, final SocialType socialType, final String email) {
         return userCreator.createUser(socialId, socialType, email);
     }
 
diff --git a/module-domain/src/main/java/com/mile/writername/service/WriterNameRetriever.java b/module-domain/src/main/java/com/mile/writername/service/WriterNameRetriever.java
index 09ecef7c..dfeec0fb 100644
--- a/module-domain/src/main/java/com/mile/writername/service/WriterNameRetriever.java
+++ b/module-domain/src/main/java/com/mile/writername/service/WriterNameRetriever.java
@@ -25,16 +25,6 @@ public class WriterNameRetriever {
     private final WriterNameRepository writerNameRepository;
     private static final int MIN_TOTAL_CURIOUS_COUNT = 0;
 
-    public WriterName getWriterNameByPostAndUserId(
-            final Post post,
-            final Long userId
-    ) {
-        return writerNameRepository.findByMoimIdAndWriterId(post.getTopic().getMoim().getId(), userId)
-                .orElseThrow(
-                        () -> new NotFoundException(ErrorMessage.WRITER_NOT_FOUND)
-                );
-    }
-
     public boolean existWriterNamesByMoimAndName(
             final Moim moim,
             final String name
@@ -76,7 +66,7 @@ public WriterName findByMoimAndUser(
     ) {
         return writerNameRepository.findByMoimIdAndWriterId(moimId, writerId)
                 .orElseThrow(
-                        () -> new ForbiddenException(ErrorMessage.USER_AUTHENTICATE_ERROR)
+                        () -> new ForbiddenException(ErrorMessage.USER_MOIM_AUTHENTICATE_ERROR)
                 );
     }