diff --git a/build.gradle b/build.gradle
index 04dfb8ed..ceeb29f5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,6 +25,9 @@ dependencies {
     //Swagger
     implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.1.0'
 
+    //Test
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+
 }
 
 subprojects {
diff --git a/module-api/build.gradle b/module-api/build.gradle
index 6bce34f1..428c16b3 100644
--- a/module-api/build.gradle
+++ b/module-api/build.gradle
@@ -28,6 +28,10 @@ dependencies {
 
     //Aop
     implementation 'org.springframework.boot:spring-boot-starter-aop'
+
+    //Test
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+
 }
 
 ext {
@@ -39,4 +43,7 @@ dependencyManagement {
         mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
     }
 
+}
+tasks.named('test') {
+    useJUnitPlatform()
 }
\ No newline at end of file
diff --git a/module-api/src/main/java/com/mile/controller/moim/MoimController.java b/module-api/src/main/java/com/mile/controller/moim/MoimController.java
new file mode 100644
index 00000000..7a791bb1
--- /dev/null
+++ b/module-api/src/main/java/com/mile/controller/moim/MoimController.java
@@ -0,0 +1,30 @@
+package com.mile.controller.moim;
+
+import com.mile.dto.SuccessResponse;
+import com.mile.exception.message.SuccessMessage;
+import com.mile.moim.serivce.MoimService;
+import com.mile.moim.serivce.dto.ContentListResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.security.Principal;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/moim")
+public class MoimController implements MoimControllerSwagger {
+
+    private final MoimService moimService;
+
+    @GetMapping("/{moimId}")
+    @Override
+    public SuccessResponse<ContentListResponse> getTopicsFromMoim(
+            @PathVariable final Long moimId,
+            final Principal principal
+    ) {
+        return SuccessResponse.of(SuccessMessage.TOPIC_SEARCH_SUCCESS, moimService.getContentsFromMoim(moimId, Long.valueOf(principal.getName())));
+    }
+}
diff --git a/module-api/src/main/java/com/mile/controller/moim/MoimControllerSwagger.java b/module-api/src/main/java/com/mile/controller/moim/MoimControllerSwagger.java
new file mode 100644
index 00000000..34ebf734
--- /dev/null
+++ b/module-api/src/main/java/com/mile/controller/moim/MoimControllerSwagger.java
@@ -0,0 +1,34 @@
+package com.mile.controller.moim;
+
+import com.mile.dto.ErrorResponse;
+import com.mile.dto.SuccessResponse;
+import com.mile.moim.serivce.dto.ContentListResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.PathVariable;
+
+import java.security.Principal;
+
+@Tag(name = "Moim", description = "모임 관련 API")
+public interface MoimControllerSwagger {
+    @Operation(summary = "에디터 상단 글감 조회")
+    @ApiResponses(
+            value = {
+                    @ApiResponse(responseCode = "200", description = "글감 조회가 완료되었습니다."),
+                    @ApiResponse(responseCode = "403", description = "해당 사용자는 모임에 접근 권한이 없습니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
+                    @ApiResponse(responseCode = "404", description = "해당 모임의 주제가 존재하지 않습니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
+                    @ApiResponse(responseCode = "500", description = "서버 내부 오류입니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class)))
+            }
+    )
+    SuccessResponse<ContentListResponse> getTopicsFromMoim(
+            @PathVariable final Long moimId,
+            final Principal principal
+    );
+}
diff --git a/module-api/src/main/java/com/mile/controller/post/PostController.java b/module-api/src/main/java/com/mile/controller/post/PostController.java
new file mode 100644
index 00000000..788c1736
--- /dev/null
+++ b/module-api/src/main/java/com/mile/controller/post/PostController.java
@@ -0,0 +1,38 @@
+package com.mile.controller.post;
+
+import com.mile.dto.SuccessResponse;
+import com.mile.exception.message.SuccessMessage;
+import com.mile.post.service.PostService;
+import com.mile.post.service.dto.CommentCreateRequest;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.PathVariable;
+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;
+
+import java.security.Principal;
+
+@RestController
+@RequestMapping("/api/post")
+@RequiredArgsConstructor
+public class PostController implements PostControllerSwagger{
+
+    private final PostService postService;
+
+    @PostMapping("/{postId}/comment")
+    @Override
+    public SuccessResponse postComment(
+            @PathVariable final Long postId,
+            @Valid @RequestBody final CommentCreateRequest commentCreateRequest,
+            final Principal principal
+    ) {
+        postService.createCommentOnPost(
+                postId,
+                Long.valueOf(principal.getName()),
+                commentCreateRequest
+        );
+        return SuccessResponse.of(SuccessMessage.COMMENT_CREATE_SUCCESS);
+    }
+}
diff --git a/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java b/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java
new file mode 100644
index 00000000..0bc6b3ae
--- /dev/null
+++ b/module-api/src/main/java/com/mile/controller/post/PostControllerSwagger.java
@@ -0,0 +1,40 @@
+package com.mile.controller.post;
+
+import com.mile.dto.ErrorResponse;
+import com.mile.dto.SuccessResponse;
+import com.mile.post.service.dto.CommentCreateRequest;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+
+import java.security.Principal;
+
+@Tag(name = "Post", description = "게시글 관련 API - 댓글 등록/ 조회 포함")
+public interface PostControllerSwagger {
+
+    @Operation(summary = "댓글 작성")
+    @ApiResponses(
+            value = {
+                    @ApiResponse(responseCode = "200", description = "댓글 등록이 완료되었습니다."),
+                    @ApiResponse(responseCode = "400",
+                            description = "1. 댓글 최대 입력 길이(500자)를 초과하였습니다.\n" +
+                                    "2.댓글에 내용이 없습니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
+                    @ApiResponse(responseCode = "403", description = "해당 사용자는 모임에 접근 권한이 없습니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
+                    @ApiResponse(responseCode = "500", description = "서버 내부 오류입니다.",
+                            content = @Content(schema = @Schema(implementation = ErrorResponse.class)))
+            }
+    )
+    SuccessResponse postComment(
+            @PathVariable final Long postId,
+            @Valid @RequestBody final CommentCreateRequest commentCreateRequest,
+            final Principal principal
+    );
+}
diff --git a/module-api/src/main/java/com/mile/controller/user/UserControllerSwagger.java b/module-api/src/main/java/com/mile/controller/user/UserControllerSwagger.java
index cef9bdfa..4b2ec423 100644
--- a/module-api/src/main/java/com/mile/controller/user/UserControllerSwagger.java
+++ b/module-api/src/main/java/com/mile/controller/user/UserControllerSwagger.java
@@ -21,8 +21,7 @@ public interface UserControllerSwagger {
     @Operation(summary = "소셜 로그인")
     @ApiResponses(
             value = {
-                    @ApiResponse(responseCode = "200", description = "소셜 로그인이 완료되었습니다.",
-                            content = @Content(schema = @Schema(implementation = SuccessResponse.class))),
+                    @ApiResponse(responseCode = "200", description = "소셜 로그인이 완료되었습니다."),
                     @ApiResponse(responseCode = "400", description =
                             "1. 요청한 값이 유효하지 않습니다.\n" + "2. 인가 코드가 만료되었습니다.\n",
                             content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
@@ -38,7 +37,7 @@ SuccessResponse<LoginSuccessResponse> login(
     @Operation(summary = "액세스 토큰 재발급")
     @ApiResponses(
             value = {
-                    @ApiResponse(responseCode = "200", description = "액세스 토큰 재발급이 완료되었습니다.", content = @Content(schema = @Schema(implementation = SuccessResponse.class))),
+                    @ApiResponse(responseCode = "200", description = "액세스 토큰 재발급이 완료되었습니다."),
                     @ApiResponse(responseCode = "401", description = "리프레시 토큰이 유효하지 않습니다.", content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
                     @ApiResponse(responseCode = "404", description = "해당 유저의 리프레시 토큰이 존재하지 않습니다.", content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
                     @ApiResponse(responseCode = "500", description = "서버 내부 오류입니다.", content = @Content(schema = @Schema(implementation = ErrorResponse.class)))
@@ -51,7 +50,7 @@ SuccessResponse<AccessTokenGetSuccess> refreshToken(
     @Operation(summary = "회원 탈퇴")
     @ApiResponses(
             value = {
-                    @ApiResponse(responseCode = "200", description = "회원 삭제가 완료되었습니다.", content = @Content(schema = @Schema(implementation = SuccessResponse.class))),
+                    @ApiResponse(responseCode = "200", description = "회원 삭제가 완료되었습니다."),
                     @ApiResponse(responseCode = "404", description =
                             "1. 해당 유저의 리프레시 토큰이 존재하지 않습니다.\n" +
                                     "2. 해당 유저는 존재하지 않습니다.",
@@ -66,7 +65,7 @@ SuccessResponse deleteUser(
     @Operation(summary = "로그아웃")
     @ApiResponses(
             value = {
-                    @ApiResponse(responseCode = "200", description = "로그아웃이 완료되었습니다.", content = @Content(schema = @Schema(implementation = SuccessResponse.class))),
+                    @ApiResponse(responseCode = "200", description = "로그아웃이 완료되었습니다."),
                     @ApiResponse(responseCode = "404", description = "해당 유저의 리프레시 토큰이 존재하지 않습니다.", content = @Content(schema = @Schema(implementation = ErrorResponse.class))),
                     @ApiResponse(responseCode = "500", description = "서버 내부 오류입니다.", content = @Content(schema = @Schema(implementation = ErrorResponse.class)))
             }
diff --git a/module-api/src/test/java/com/mile/ApiApplicationTests.java b/module-api/src/test/java/com/mile/ApiApplicationTests.java
new file mode 100644
index 00000000..e1b0b713
--- /dev/null
+++ b/module-api/src/test/java/com/mile/ApiApplicationTests.java
@@ -0,0 +1,7 @@
+package com.mile;
+
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ApiApplicationTests {
+}
\ No newline at end of file
diff --git a/module-common/src/main/java/com/mile/config/security/SecurityConfig.java b/module-common/src/main/java/com/mile/config/security/SecurityConfig.java
index b7896897..0b6f4e1a 100644
--- a/module-common/src/main/java/com/mile/config/security/SecurityConfig.java
+++ b/module-common/src/main/java/com/mile/config/security/SecurityConfig.java
@@ -24,8 +24,7 @@ public class SecurityConfig {
 
 
     private static final String[] AUTH_WHITELIST = {
-            "/user/login",
-            "/user/token-refresh",
+            "/api/**",
             "/actuator/health",
             "/v3/api-docs/**",
             "/swagger-ui/**",
diff --git a/module-common/src/main/java/com/mile/dto/ErrorResponse.java b/module-common/src/main/java/com/mile/dto/ErrorResponse.java
index 659506f4..785f6a4f 100644
--- a/module-common/src/main/java/com/mile/dto/ErrorResponse.java
+++ b/module-common/src/main/java/com/mile/dto/ErrorResponse.java
@@ -9,4 +9,8 @@ public record ErrorResponse(
     public static ErrorResponse of(final ErrorMessage errorMessage) {
         return new ErrorResponse(errorMessage.getStatus(), errorMessage.getMessage());
     }
+
+    public static ErrorResponse of(final int status, final String message) {
+        return new ErrorResponse(status, message);
+    }
 }
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 1c1ccc11..1ad3f992 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
@@ -13,18 +13,34 @@ public enum ErrorMessage {
      */
     USER_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 유저는 존재하지 않습니다."),
     REFRESH_TOKEN_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 유저의 리프레시 토큰이 존재하지 않습니다."),
+    POST_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 글은 존재하지 않습니다."),
+
+    MOIM_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 글모임이 존재하지 않습니다."),
+    CONTENT_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "해당 모임의 주제가 존재하지 않습니다."),
+    HANDLER_NOT_FOUND(HttpStatus.NOT_FOUND.value(), "요청하신 URL은 정보가 없습니다."),
+
     /*
     Bad Request
      */
     ENUM_VALUE_BAD_REQUEST(HttpStatus.BAD_REQUEST.value(), "요청한 값이 유효하지 않습니다."),
     AUTHENTICATION_CODE_EXPIRED(HttpStatus.BAD_REQUEST.value(), "인가 코드가 만료되었습니다."),
     SOCIAL_TYPE_BAD_REQUEST(HttpStatus.BAD_REQUEST.value(), "로그인 요청이 유효하지 않습니다."),
+
+    VALIDATION_REQUEST_MISSING_EXCEPTION(HttpStatus.BAD_REQUEST.value(), "요청 값이 유효하지 않습니다."),
+
+    BEARER_LOST_ERROR(HttpStatus.BAD_REQUEST.value(), "토큰의 요청에 Bearer이 담겨 있지 않습니다."),
+
     /*
     Unauthorized
      */
     ACCESS_TOKEN_EXPIRED(HttpStatus.UNAUTHORIZED.value(), "액세스 토큰이 만료되었습니다."),
     TOKEN_INCORRECT_ERROR(HttpStatus.UNAUTHORIZED.value(), "리프레시 토큰이 유효하지 않습니다."),
     TOKEN_VALIDATION_ERROR(HttpStatus.UNAUTHORIZED.value(), "사용자 검증 토큰이 유효하지 안습니다."),
+    /*
+    Forbidden
+     */
+    USER_AUTHENTICATE_ERROR(HttpStatus.FORBIDDEN.value(), "해당 사용자는 모임에 접근 권한이 없습니다."),
+
     /*
     Internal Server Error
      */
diff --git a/module-common/src/main/java/com/mile/exception/message/SuccessMessage.java b/module-common/src/main/java/com/mile/exception/message/SuccessMessage.java
index d4ae4aca..f3ca13b9 100644
--- a/module-common/src/main/java/com/mile/exception/message/SuccessMessage.java
+++ b/module-common/src/main/java/com/mile/exception/message/SuccessMessage.java
@@ -10,7 +10,15 @@ public enum SuccessMessage {
     LOGIN_SUCCESS(HttpStatus.OK.value(), "소셜 로그인이 완료되었습니다."),
     ISSUE_ACCESS_TOKEN_SUCCESS(HttpStatus.OK.value(), "액세스 토큰 재발급이 완료되었습니다."),
     USER_DELETE_SUCCESS(HttpStatus.OK.value(), "회원 삭제가 완료되었습니다."),
-    LOGOUT_SUCCESS(HttpStatus.OK.value(), "로그아웃이 완료되었습니다.")
+    LOGOUT_SUCCESS(HttpStatus.OK.value(), "로그아웃이 완료되었습니다."),
+
+    /*
+    201 CREATED
+     */
+    COMMENT_CREATE_SUCCESS(HttpStatus.CREATED.value(), "댓글 등록이 완료되었습니다."),
+
+
+    TOPIC_SEARCH_SUCCESS(HttpStatus.OK.value(), "주제 조회가 완료되었습니다."),
     ;
 
     int status;
diff --git a/module-common/src/main/java/com/mile/exception/model/ForbiddenException.java b/module-common/src/main/java/com/mile/exception/model/ForbiddenException.java
new file mode 100644
index 00000000..6ca4f559
--- /dev/null
+++ b/module-common/src/main/java/com/mile/exception/model/ForbiddenException.java
@@ -0,0 +1,9 @@
+package com.mile.exception.model;
+
+import com.mile.exception.message.ErrorMessage;
+
+public class ForbiddenException extends MileException {
+    public ForbiddenException(final ErrorMessage errorMessage) {
+        super(errorMessage);
+    }
+}
\ No newline at end of file
diff --git a/module-common/src/main/java/com/mile/filter/JwtAuthenticationFilter.java b/module-common/src/main/java/com/mile/filter/JwtAuthenticationFilter.java
index 3a14f1a4..a92f7461 100644
--- a/module-common/src/main/java/com/mile/filter/JwtAuthenticationFilter.java
+++ b/module-common/src/main/java/com/mile/filter/JwtAuthenticationFilter.java
@@ -2,6 +2,7 @@
 
 import com.mile.authentication.UserAuthentication;
 import com.mile.exception.message.ErrorMessage;
+import com.mile.exception.model.BadRequestException;
 import com.mile.exception.model.JwtValidationException;
 import com.mile.jwt.JwtTokenProvider;
 import com.mile.jwt.JwtValidationType;
@@ -10,6 +11,7 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.lang.NonNull;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
@@ -20,6 +22,7 @@
 import java.io.IOException;
 
 @Component
+@Slf4j
 @RequiredArgsConstructor
 public class JwtAuthenticationFilter extends OncePerRequestFilter {
 
@@ -49,6 +52,8 @@ private String getJwtFromRequest(HttpServletRequest request) {
         String bearerToken = request.getHeader("Authorization");
         if (StringUtils.hasText(bearerToken) && bearerToken.startsWith("Bearer ")) {
             return bearerToken.substring("Bearer ".length());
+        } else if (StringUtils.hasText(bearerToken) && !bearerToken.startsWith("Bearer ")) {
+            throw new BadRequestException(ErrorMessage.BEARER_LOST_ERROR);
         }
         return null;
     }
diff --git a/module-common/src/main/java/com/mile/handler/GlobalExceptionHandler.java b/module-common/src/main/java/com/mile/handler/GlobalExceptionHandler.java
index 154adebd..0f33b500 100644
--- a/module-common/src/main/java/com/mile/handler/GlobalExceptionHandler.java
+++ b/module-common/src/main/java/com/mile/handler/GlobalExceptionHandler.java
@@ -3,6 +3,7 @@
 import com.mile.dto.ErrorResponse;
 import com.mile.exception.message.ErrorMessage;
 import com.mile.exception.model.BadRequestException;
+import com.mile.exception.model.ForbiddenException;
 import com.mile.exception.model.JwtValidationException;
 import com.mile.exception.model.NotFoundException;
 import com.mile.exception.model.UnauthorizedException;
@@ -11,8 +12,11 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.servlet.NoHandlerFoundException;
 
 @Slf4j
 @RestControllerAdvice
@@ -38,11 +42,28 @@ public ResponseEntity<ErrorResponse> handleJwtValidationException(final JwtValid
         return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(ErrorResponse.of(e.getErrorMessage()));
     }
 
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    protected ResponseEntity<ErrorResponse> handleMethodArgumentNotValidException(final MethodArgumentNotValidException e) {
+        FieldError fieldError = e.getBindingResult().getFieldError();
+        if (fieldError == null) return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ErrorResponse.of(ErrorMessage.VALIDATION_REQUEST_MISSING_EXCEPTION));
+        else return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ErrorResponse.of(HttpStatus.BAD_REQUEST.value(), fieldError.getDefaultMessage()));
+    }
+
+    @ExceptionHandler(ForbiddenException.class)
+    public ResponseEntity<ErrorResponse> handleForbiddenException(final ForbiddenException e) {
+        return ResponseEntity.status(HttpStatus.FORBIDDEN).body(ErrorResponse.of(e.getErrorMessage()));
+    }
+
     @ExceptionHandler(NotFoundException.class)
     public ResponseEntity<ErrorResponse> handleNotFoundException(final NotFoundException e) {
         return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ErrorResponse.of(e.getErrorMessage()));
     }
 
+    @ExceptionHandler({NoHandlerFoundException.class})
+    public ResponseEntity<ErrorResponse> handleNoHandlerFoundException(final NoHandlerFoundException e) {
+        return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ErrorResponse.of(ErrorMessage.HANDLER_NOT_FOUND));
+    }
+
     @ExceptionHandler(Exception.class)
     protected ResponseEntity<ErrorResponse> handleException(final Exception error, final HttpServletRequest request) {
         log.error("================================================NEW===============================================");
diff --git a/module-domain/build.gradle b/module-domain/build.gradle
index 79e7fd48..dc293c35 100644
--- a/module-domain/build.gradle
+++ b/module-domain/build.gradle
@@ -5,6 +5,9 @@ dependencies {
     implementation project(':module-auth')
     implementation project(':module-common')
 
+    //Swagger
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.1.0'
+
     // QueryDSL Implementation
     implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
     annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jakarta"
diff --git a/module-domain/src/main/java/com/mile/comment/domain/Comment.java b/module-domain/src/main/java/com/mile/comment/domain/Comment.java
index 27140d63..3c63d1e2 100644
--- a/module-domain/src/main/java/com/mile/comment/domain/Comment.java
+++ b/module-domain/src/main/java/com/mile/comment/domain/Comment.java
@@ -1,15 +1,23 @@
 package com.mile.comment.domain;
 
 import com.mile.config.BaseTimeEntity;
-import com.mile.post.Post;
+import com.mile.post.domain.Post;
+import com.mile.post.service.dto.CommentCreateRequest;
 import com.mile.user.domain.User;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.NoArgsConstructor;
 
 @Entity
+@Builder
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+@NoArgsConstructor
 public class Comment extends BaseTimeEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -23,4 +31,19 @@ public class Comment extends BaseTimeEntity {
 
     @ManyToOne
     private User user;
+
+    public static Comment create(
+            final Post post,
+            final User user,
+            final CommentCreateRequest createRequest,
+            final boolean anonymous
+    ) {
+        return Comment
+                .builder()
+                .post(post)
+                .content(createRequest.content())
+                .user(user)
+                .anonymous(anonymous)
+                .build();
+    }
 }
diff --git a/module-domain/src/main/java/com/mile/comment/repository/CommentRepository.java b/module-domain/src/main/java/com/mile/comment/repository/CommentRepository.java
new file mode 100644
index 00000000..b6ec0570
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/comment/repository/CommentRepository.java
@@ -0,0 +1,7 @@
+package com.mile.comment.repository;
+
+import com.mile.comment.domain.Comment;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CommentRepository extends JpaRepository<Comment, Long> {
+}
diff --git a/module-domain/src/main/java/com/mile/comment/service/CommentService.java b/module-domain/src/main/java/com/mile/comment/service/CommentService.java
index 4e2718cc..04dd34a4 100644
--- a/module-domain/src/main/java/com/mile/comment/service/CommentService.java
+++ b/module-domain/src/main/java/com/mile/comment/service/CommentService.java
@@ -1,7 +1,24 @@
 package com.mile.comment.service;
 
+import com.mile.comment.domain.Comment;
+import com.mile.comment.repository.CommentRepository;
+import com.mile.post.domain.Post;
+import com.mile.post.service.dto.CommentCreateRequest;
+import com.mile.user.domain.User;
+import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 @Service
+@RequiredArgsConstructor
 public class CommentService {
+    private static boolean ANONYMOUS_TRUE = true;
+    private final CommentRepository commentRepository;
+
+    public void createComment(
+            final Post post,
+            final User user,
+            final CommentCreateRequest commentCreateRequest
+    ) {
+        commentRepository.save(Comment.create(post, user, commentCreateRequest, ANONYMOUS_TRUE));
+    }
 }
diff --git a/module-domain/src/main/java/com/mile/config/BaseTimeEntity.java b/module-domain/src/main/java/com/mile/config/BaseTimeEntity.java
index 9d958a42..1d4cc793 100644
--- a/module-domain/src/main/java/com/mile/config/BaseTimeEntity.java
+++ b/module-domain/src/main/java/com/mile/config/BaseTimeEntity.java
@@ -3,9 +3,12 @@
 import jakarta.persistence.EntityListeners;
 import jakarta.persistence.MappedSuperclass;
 import java.time.LocalDateTime;
+
+import lombok.Getter;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
 
+@Getter
 @MappedSuperclass
 @EntityListeners(AuditingEntityListener.class)
 public abstract class BaseTimeEntity {
diff --git a/module-domain/src/main/java/com/mile/curious/domain/Curious.java b/module-domain/src/main/java/com/mile/curious/domain/Curious.java
index d5726daf..2ef0fc93 100644
--- a/module-domain/src/main/java/com/mile/curious/domain/Curious.java
+++ b/module-domain/src/main/java/com/mile/curious/domain/Curious.java
@@ -1,6 +1,6 @@
 package com.mile.curious.domain;
 
-import com.mile.post.Post;
+import com.mile.post.domain.Post;
 import com.mile.config.BaseTimeEntity;
 import com.mile.user.domain.User;
 import jakarta.persistence.Entity;
diff --git a/module-domain/src/main/java/com/mile/moim/domain/Moim.java b/module-domain/src/main/java/com/mile/moim/domain/Moim.java
index 981b5fed..acadee6c 100644
--- a/module-domain/src/main/java/com/mile/moim/domain/Moim.java
+++ b/module-domain/src/main/java/com/mile/moim/domain/Moim.java
@@ -7,8 +7,10 @@
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
+import lombok.Getter;
 
 @Entity
+@Getter
 public class Moim {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
diff --git a/module-domain/src/main/java/com/mile/moim/repository/MoimRepository.java b/module-domain/src/main/java/com/mile/moim/repository/MoimRepository.java
new file mode 100644
index 00000000..b52ac9c8
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/moim/repository/MoimRepository.java
@@ -0,0 +1,7 @@
+package com.mile.moim.repository;
+
+import com.mile.moim.domain.Moim;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MoimRepository extends JpaRepository<Moim, Long> {
+}
diff --git a/module-domain/src/main/java/com/mile/moim/serivce/MoimService.java b/module-domain/src/main/java/com/mile/moim/serivce/MoimService.java
index aa140403..0bd32693 100644
--- a/module-domain/src/main/java/com/mile/moim/serivce/MoimService.java
+++ b/module-domain/src/main/java/com/mile/moim/serivce/MoimService.java
@@ -1,7 +1,33 @@
 package com.mile.moim.serivce;
 
+import com.mile.exception.message.ErrorMessage;
+import com.mile.exception.model.ForbiddenException;
+import com.mile.moim.serivce.dto.ContentListResponse;
+import com.mile.topic.serivce.TopicService;
+import com.mile.writerName.serivce.WriterNameService;
+import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 @Service
+@RequiredArgsConstructor
 public class MoimService {
+    private final WriterNameService writerNameService;
+    private final TopicService topicService;
+
+    public ContentListResponse getContentsFromMoim(
+            final Long moimId,
+            final Long userId
+    ) {
+        authenticateUserOfMoim(moimId, userId);
+        return ContentListResponse.of(topicService.getContentsFromMoim(moimId));
+    }
+
+    public void authenticateUserOfMoim(
+            final Long moimId,
+            final Long userId
+    ) {
+        if (!writerNameService.isUserInMoim(moimId, userId)) {
+            throw new ForbiddenException(ErrorMessage.USER_AUTHENTICATE_ERROR);
+        }
+    }
 }
diff --git a/module-domain/src/main/java/com/mile/moim/serivce/dto/ContentListResponse.java b/module-domain/src/main/java/com/mile/moim/serivce/dto/ContentListResponse.java
new file mode 100644
index 00000000..0738d0cb
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/moim/serivce/dto/ContentListResponse.java
@@ -0,0 +1,15 @@
+package com.mile.moim.serivce.dto;
+
+import com.mile.topic.serivce.dto.ContentResponse;
+
+import java.util.List;
+
+public record ContentListResponse(
+        List<ContentResponse> topics
+) {
+    public static ContentListResponse of(
+            final List<ContentResponse> topics
+    ) {
+        return new ContentListResponse(topics);
+    }
+}
diff --git a/module-domain/src/main/java/com/mile/penNameProfile/serivce/PenNameProfileService.java b/module-domain/src/main/java/com/mile/penNameProfile/serivce/PenNameProfileService.java
deleted file mode 100644
index 1622f9d5..00000000
--- a/module-domain/src/main/java/com/mile/penNameProfile/serivce/PenNameProfileService.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.mile.penNameProfile.serivce;
-
-import org.springframework.stereotype.Service;
-
-@Service
-public class PenNameProfileService {
-}
diff --git a/module-domain/src/main/java/com/mile/post/Post.java b/module-domain/src/main/java/com/mile/post/domain/Post.java
similarity index 79%
rename from module-domain/src/main/java/com/mile/post/Post.java
rename to module-domain/src/main/java/com/mile/post/domain/Post.java
index d5cd3ffd..985a9ac5 100644
--- a/module-domain/src/main/java/com/mile/post/Post.java
+++ b/module-domain/src/main/java/com/mile/post/domain/Post.java
@@ -1,14 +1,17 @@
-package com.mile.post;
+package com.mile.post.domain;
 
+import com.mile.config.BaseTimeEntity;
 import com.mile.topic.domain.Topic;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import lombok.Getter;
 
 @Entity
-public class Post {
+@Getter
+public class Post extends BaseTimeEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
diff --git a/module-domain/src/main/java/com/mile/post/repository/PostRepository.java b/module-domain/src/main/java/com/mile/post/repository/PostRepository.java
new file mode 100644
index 00000000..ba2a267d
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/post/repository/PostRepository.java
@@ -0,0 +1,7 @@
+package com.mile.post.repository;
+
+import com.mile.post.domain.Post;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PostRepository extends JpaRepository<Post, Long> {
+}
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
new file mode 100644
index 00000000..ce24fc94
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/post/service/PostService.java
@@ -0,0 +1,52 @@
+package com.mile.post.service;
+
+import com.mile.comment.service.CommentService;
+import com.mile.exception.message.ErrorMessage;
+import com.mile.exception.model.NotFoundException;
+import com.mile.moim.serivce.MoimService;
+import com.mile.post.domain.Post;
+import com.mile.post.repository.PostRepository;
+import com.mile.post.service.dto.CommentCreateRequest;
+import com.mile.user.serivce.UserService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+public class PostService {
+
+    private final PostRepository postRepository;
+    private final MoimService moimService;
+    private final CommentService commentService;
+    private final UserService userService;
+
+    @Transactional
+    public void createCommentOnPost(
+            final Long postId,
+            final Long userId,
+            final CommentCreateRequest commentCreateRequest
+
+    ) {
+        Post post = findById(postId);
+        authenticateUserWithPost(post, userId);
+        commentService.createComment(post, userService.findById(userId), commentCreateRequest);
+    }
+
+
+    private void authenticateUserWithPost(
+            final Post post,
+            final Long userId
+    ) {
+        moimService.authenticateUserOfMoim(post.getTopic().getMoim().getId(), userId);
+    }
+
+    public Post findById(
+            final Long postId
+    ) {
+        return postRepository.findById(postId)
+                .orElseThrow(
+                        () -> new NotFoundException(ErrorMessage.POST_NOT_FOUND)
+                );
+    }
+}
diff --git a/module-domain/src/main/java/com/mile/post/service/dto/CommentCreateRequest.java b/module-domain/src/main/java/com/mile/post/service/dto/CommentCreateRequest.java
new file mode 100644
index 00000000..1b3e3436
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/post/service/dto/CommentCreateRequest.java
@@ -0,0 +1,14 @@
+package com.mile.post.service.dto;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Size;
+
+public record CommentCreateRequest(
+
+        @Schema(description = "댓글 내용", example = "댓글 내용을 입력해주세요")
+        @NotBlank(message = "댓글에 내용이 없습니다.")
+        @Size(max = 500, message = "댓글 최대 입력 길이(500자)를 초과하였습니다.")
+        String content
+) {
+}
diff --git a/module-domain/src/main/java/com/mile/topic/domain/Topic.java b/module-domain/src/main/java/com/mile/topic/domain/Topic.java
index 5a0757af..027b1a9f 100644
--- a/module-domain/src/main/java/com/mile/topic/domain/Topic.java
+++ b/module-domain/src/main/java/com/mile/topic/domain/Topic.java
@@ -1,14 +1,17 @@
 package com.mile.topic.domain;
 
+import com.mile.config.BaseTimeEntity;
 import com.mile.moim.domain.Moim;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import lombok.Getter;
 
 @Entity
-public class Topic {
+@Getter
+public class Topic extends BaseTimeEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
@@ -16,7 +19,7 @@ public class Topic {
     @ManyToOne
     private Moim moim;
 
+    private String keyword;
     private String topic;
-    private int week;
-    private boolean isClosed;
+    private String description;
 }
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
new file mode 100644
index 00000000..72e678df
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/topic/repository/TopicRepository.java
@@ -0,0 +1,11 @@
+package com.mile.topic.repository;
+
+import com.mile.topic.domain.Topic;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface TopicRepository extends JpaRepository<Topic, Long> {
+
+    public List<Topic> findByMoimId(final Long moimId);
+}
diff --git a/module-domain/src/main/java/com/mile/topic/serivce/TopicService.java b/module-domain/src/main/java/com/mile/topic/serivce/TopicService.java
index 70b6e999..7ad74a50 100644
--- a/module-domain/src/main/java/com/mile/topic/serivce/TopicService.java
+++ b/module-domain/src/main/java/com/mile/topic/serivce/TopicService.java
@@ -1,7 +1,55 @@
 package com.mile.topic.serivce;
 
+import com.mile.config.BaseTimeEntity;
+import com.mile.exception.message.ErrorMessage;
+import com.mile.exception.model.NotFoundException;
+import com.mile.topic.domain.Topic;
+import com.mile.topic.repository.TopicRepository;
+import com.mile.topic.serivce.dto.ContentResponse;
+import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
 @Service
+@RequiredArgsConstructor
 public class TopicService {
+
+    private final TopicRepository topicRepository;
+
+
+    public List<ContentResponse> getContentsFromMoim(
+            final Long moimId
+    ) {
+        List<Topic> topicList = sortByCreatedAt(findByMoimId(moimId));
+        isContentsEmpty(topicList);
+        return topicList
+                .stream()
+                .map(ContentResponse::of)
+                .collect(Collectors.toList());
+    }
+
+    private void isContentsEmpty(
+            final List<Topic> topicList
+    ) {
+        if (topicList.isEmpty()) {
+            throw new NotFoundException(ErrorMessage.CONTENT_NOT_FOUND);
+        }
+    }
+
+    private List<Topic> findByMoimId(
+            final Long moimId
+    ) {
+        return topicRepository.findByMoimId(moimId);
+    }
+
+    private List<Topic> sortByCreatedAt(
+            final List<Topic> topicList
+    ) {
+        return topicList.stream()
+                .sorted(Comparator.comparing(BaseTimeEntity::getCreatedAt))
+                .collect(Collectors.toList());
+    }
 }
diff --git a/module-domain/src/main/java/com/mile/topic/serivce/dto/ContentResponse.java b/module-domain/src/main/java/com/mile/topic/serivce/dto/ContentResponse.java
new file mode 100644
index 00000000..69cf182a
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/topic/serivce/dto/ContentResponse.java
@@ -0,0 +1,14 @@
+package com.mile.topic.serivce.dto;
+
+import com.mile.topic.domain.Topic;
+
+public record ContentResponse(
+        Long topicId,
+        String topicName
+) {
+    public static ContentResponse of(
+            final Topic topic
+    ) {
+        return new ContentResponse(topic.getId(), topic.getTopic());
+    }
+}
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 9c010d18..8f2428c3 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
@@ -118,4 +118,13 @@ private LoginSuccessResponse getTokenDto(
             return getTokenByUserId(id);
         }
     }
+
+    public User findById(
+            Long userId
+    ) {
+        return userRepository.findById(userId)
+                .orElseThrow(
+                        () -> new NotFoundException(ErrorMessage.USER_NOT_FOUND)
+                );
+    }
 }
diff --git a/module-domain/src/main/java/com/mile/penNameProfile/domain/PenName.java b/module-domain/src/main/java/com/mile/writerName/domain/WriterName.java
similarity index 84%
rename from module-domain/src/main/java/com/mile/penNameProfile/domain/PenName.java
rename to module-domain/src/main/java/com/mile/writerName/domain/WriterName.java
index 435f1592..fa112626 100644
--- a/module-domain/src/main/java/com/mile/penNameProfile/domain/PenName.java
+++ b/module-domain/src/main/java/com/mile/writerName/domain/WriterName.java
@@ -1,4 +1,4 @@
-package com.mile.penNameProfile.domain;
+package com.mile.writerName.domain;
 
 import com.mile.moim.domain.Moim;
 import com.mile.user.domain.User;
@@ -7,9 +7,11 @@
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
+import lombok.Getter;
 
 @Entity
-public class PenName {
+@Getter
+public class WriterName {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
diff --git a/module-domain/src/main/java/com/mile/writerName/repository/WriterNameRepository.java b/module-domain/src/main/java/com/mile/writerName/repository/WriterNameRepository.java
new file mode 100644
index 00000000..5cda835d
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/writerName/repository/WriterNameRepository.java
@@ -0,0 +1,11 @@
+package com.mile.writerName.repository;
+
+import com.mile.writerName.domain.WriterName;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface WriterNameRepository extends JpaRepository<WriterName, Long> {
+
+    Optional<WriterName> findByMoimIdAndWriterId(final Long moimId, final Long userId);
+}
\ No newline at end of file
diff --git a/module-domain/src/main/java/com/mile/writerName/serivce/WriterNameService.java b/module-domain/src/main/java/com/mile/writerName/serivce/WriterNameService.java
new file mode 100644
index 00000000..5e774360
--- /dev/null
+++ b/module-domain/src/main/java/com/mile/writerName/serivce/WriterNameService.java
@@ -0,0 +1,19 @@
+package com.mile.writerName.serivce;
+
+import com.mile.writerName.repository.WriterNameRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class WriterNameService {
+    private final WriterNameRepository writerNameRepository;
+
+    public boolean isUserInMoim(
+            final Long moimId,
+            final Long writerId
+    ) {
+        return writerNameRepository.findByMoimIdAndWriterId(moimId, writerId).isPresent();
+    }
+
+}