diff --git a/src/main/java/com/example/spring_boot_a/api/review/MyReviewController.java b/src/main/java/com/example/spring_boot_a/controller/MyReviewController.java
similarity index 80%
rename from src/main/java/com/example/spring_boot_a/api/review/MyReviewController.java
rename to src/main/java/com/example/spring_boot_a/controller/MyReviewController.java
index c7e9219..202ab63 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/MyReviewController.java
+++ b/src/main/java/com/example/spring_boot_a/controller/MyReviewController.java
@@ -1,7 +1,7 @@
-package com.example.spring_boot_a.api.review;
+package com.example.spring_boot_a.controller;
 
-import com.example.spring_boot_a.api.review.dto.MyReviewItemDto;
-import com.example.spring_boot_a.domain.service.MyReviewQueryService;
+import com.example.spring_boot_a.domain.entity.review.dto.MyReviewItemDto;
+import com.example.spring_boot_a.service.MyReviewQueryService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
 import org.springframework.web.bind.annotation.*;
diff --git a/src/main/java/com/example/spring_boot_a/api/review/ReviewController.java b/src/main/java/com/example/spring_boot_a/controller/ReviewController.java
similarity index 84%
rename from src/main/java/com/example/spring_boot_a/api/review/ReviewController.java
rename to src/main/java/com/example/spring_boot_a/controller/ReviewController.java
index 769fcc5..1cb0a83 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/ReviewController.java
+++ b/src/main/java/com/example/spring_boot_a/controller/ReviewController.java
@@ -1,6 +1,10 @@
-package com.example.spring_boot_a.api.review;
+package com.example.spring_boot_a.controller;
 
 import com.example.spring_boot_a.api.review.dto.*;
+import com.example.spring_boot_a.domain.entity.review.dto.ReviewCreateRequest;
+import com.example.spring_boot_a.domain.entity.review.dto.ReviewResponse;
+import com.example.spring_boot_a.domain.entity.review.dto.StarSummaryResponse;
+import com.example.spring_boot_a.service.ReviewService;
 import jakarta.validation.Valid;
 import org.springframework.data.domain.*;
 import org.springframework.web.bind.annotation.*;
diff --git a/src/main/java/com/example/spring_boot_a/controller/UserController.java b/src/main/java/com/example/spring_boot_a/controller/UserController.java
new file mode 100644
index 0000000..7f8b57d
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/controller/UserController.java
@@ -0,0 +1,66 @@
+package com.example.spring_boot_a.controller;
+
+import com.example.spring_boot_a.domain.entity.user.converter.UserConverter;
+import com.example.spring_boot_a.domain.entity.user.dto.UserRequestDto;
+import com.example.spring_boot_a.domain.entity.user.dto.UserResponseDto;
+import com.example.spring_boot_a.domain.entity.user.User;
+import com.example.spring_boot_a.global.apiPayload.code.ApiResponse;
+import com.example.spring_boot_a.global.apiPayload.code.GeneralSuccessCode;
+import com.example.spring_boot_a.service.UserService;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/users")
+public class UserController {
+
+    private final UserService userService;
+    private final UserConverter userConverter;
+
+
+    @PostMapping
+    public ResponseEntity<ApiResponse<UserResponseDto.CreateResult>> createUser(
+            @Valid @RequestBody UserRequestDto.Create request
+    ) {
+        User user = userConverter.toUser(request);
+
+        User saved = userService.createUser(user);
+
+        UserResponseDto.CreateResult responseDTO = userConverter.toCreateResult(saved);
+
+        return ResponseEntity
+                .status(GeneralSuccessCode.CREATED.getStatus())
+                .body(ApiResponse.onSuccess(GeneralSuccessCode.CREATED, responseDTO));
+    }
+
+
+    @GetMapping("/{userId}")
+    public ResponseEntity<ApiResponse<UserResponseDto.Detail>> getUser(
+            @PathVariable Long userId
+    ) {
+        User user = userService.getUser(userId);
+
+        UserResponseDto.Detail dto = userConverter.toDetail(user);
+
+        return ResponseEntity
+                .status(GeneralSuccessCode.OK.getStatus())
+                .body(ApiResponse.onSuccess(GeneralSuccessCode.OK, dto));
+    }
+
+
+    @GetMapping
+    public ResponseEntity<ApiResponse<List<UserResponseDto.Summary>>> getUsers() {
+        List<User> users = userService.getUsers();
+
+        List<UserResponseDto.Summary> dtos = userConverter.toSummaryList(users);
+
+        return ResponseEntity
+                .status(GeneralSuccessCode.OK.getStatus())
+                .body(ApiResponse.onSuccess(GeneralSuccessCode.OK, dtos));
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Store.java b/src/main/java/com/example/spring_boot_a/domain/entity/Store.java
index 22eaeaa..0cc1c6f 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Store.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/Store.java
@@ -1,5 +1,8 @@
 package com.example.spring_boot_a.domain.entity;
 
+import com.example.spring_boot_a.domain.entity.etc.Location;
+import com.example.spring_boot_a.domain.entity.etc.Mission;
+import com.example.spring_boot_a.domain.entity.review.Review;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Term.java b/src/main/java/com/example/spring_boot_a/domain/entity/Term.java
index 67b0531..fb0b259 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Term.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/Term.java
@@ -1,6 +1,7 @@
 package com.example.spring_boot_a.domain.entity;
 
 import com.example.spring_boot_a.domain.entity.enums.TermType;
+import com.example.spring_boot_a.domain.entity.user.UserTerm;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Food.java b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Food.java
similarity index 82%
rename from src/main/java/com/example/spring_boot_a/domain/entity/Food.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/etc/Food.java
index 2d131bf..5d87461 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Food.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Food.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.etc;
 
+import com.example.spring_boot_a.domain.entity.user.UserFood;
 import com.example.spring_boot_a.domain.entity.enums.FoodType;
 import jakarta.persistence.*;
 import lombok.Getter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Location.java b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Location.java
similarity index 82%
rename from src/main/java/com/example/spring_boot_a/domain/entity/Location.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/etc/Location.java
index 115951e..3b14f94 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Location.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Location.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.etc;
 
+import com.example.spring_boot_a.domain.entity.Store;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Mission.java b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Mission.java
similarity index 82%
rename from src/main/java/com/example/spring_boot_a/domain/entity/Mission.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/etc/Mission.java
index ac50cea..9edeb46 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Mission.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Mission.java
@@ -1,5 +1,7 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.etc;
 
+import com.example.spring_boot_a.domain.entity.Store;
+import com.example.spring_boot_a.domain.entity.user.UserMission;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Reply.java b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Reply.java
similarity index 76%
rename from src/main/java/com/example/spring_boot_a/domain/entity/Reply.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/etc/Reply.java
index cbed38e..293b19f 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Reply.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/etc/Reply.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.etc;
 
+import com.example.spring_boot_a.domain.entity.review.Review;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/ReviewPhoto.java b/src/main/java/com/example/spring_boot_a/domain/entity/etc/ReviewPhoto.java
similarity index 77%
rename from src/main/java/com/example/spring_boot_a/domain/entity/ReviewPhoto.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/etc/ReviewPhoto.java
index 41a9357..7b2ab0a 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/ReviewPhoto.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/etc/ReviewPhoto.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.etc;
 
+import com.example.spring_boot_a.domain.entity.review.Review;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/Review.java b/src/main/java/com/example/spring_boot_a/domain/entity/review/Review.java
similarity index 76%
rename from src/main/java/com/example/spring_boot_a/domain/entity/Review.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/review/Review.java
index 1fdc96d..a97d69b 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/Review.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/review/Review.java
@@ -1,5 +1,8 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.review;
 
+import com.example.spring_boot_a.domain.entity.etc.ReviewPhoto;
+import com.example.spring_boot_a.domain.entity.Store;
+import com.example.spring_boot_a.domain.entity.etc.Reply;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
@@ -25,9 +28,7 @@ public class Review {
     @ManyToOne(optional = false) @JoinColumn(name = "store_id")
     private Store store;
 
-    @ManyToOne(optional = false) @JoinColumn(name = "user_id")
-    private User user;
-
+    @JoinColumn(name = "user_id")
     @OneToMany(mappedBy = "review", cascade = CascadeType.ALL, orphanRemoval = true)
     private Set<ReviewPhoto> photos = new HashSet<>();
 
diff --git a/src/main/java/com/example/spring_boot_a/api/review/dto/MyReviewItemDto.java b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/MyReviewItemDto.java
similarity index 81%
rename from src/main/java/com/example/spring_boot_a/api/review/dto/MyReviewItemDto.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/review/dto/MyReviewItemDto.java
index 67d94db..17e9297 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/dto/MyReviewItemDto.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/MyReviewItemDto.java
@@ -1,4 +1,4 @@
-package com.example.spring_boot_a.api.review.dto;
+package com.example.spring_boot_a.domain.entity.review.dto;
 
 import java.time.Instant;
 import java.util.List;
diff --git a/src/main/java/com/example/spring_boot_a/api/review/dto/ReviewCreateRequest.java b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewCreateRequest.java
similarity index 78%
rename from src/main/java/com/example/spring_boot_a/api/review/dto/ReviewCreateRequest.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewCreateRequest.java
index bb6a044..79bbf9c 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/dto/ReviewCreateRequest.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewCreateRequest.java
@@ -1,4 +1,4 @@
-package com.example.spring_boot_a.api.review.dto;
+package com.example.spring_boot_a.domain.entity.review.dto;
 
 import jakarta.validation.constraints.*;
 import java.util.List;
diff --git a/src/main/java/com/example/spring_boot_a/api/review/dto/ReviewResponse.java b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewResponse.java
similarity index 81%
rename from src/main/java/com/example/spring_boot_a/api/review/dto/ReviewResponse.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewResponse.java
index e82f2ff..4ef4e3d 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/dto/ReviewResponse.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/ReviewResponse.java
@@ -1,4 +1,4 @@
-package com.example.spring_boot_a.api.review.dto;
+package com.example.spring_boot_a.domain.entity.review.dto;
 
 import java.time.Instant;
 import java.util.List;
diff --git a/src/main/java/com/example/spring_boot_a/api/review/dto/StarSummaryResponse.java b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/StarSummaryResponse.java
similarity index 71%
rename from src/main/java/com/example/spring_boot_a/api/review/dto/StarSummaryResponse.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/review/dto/StarSummaryResponse.java
index e587991..8ce6151 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/dto/StarSummaryResponse.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/review/dto/StarSummaryResponse.java
@@ -1,4 +1,4 @@
-package com.example.spring_boot_a.api.review.dto;
+package com.example.spring_boot_a.domain.entity.review.dto;
 
 public record StarSummaryResponse(
         long s5,
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/User.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/User.java
similarity index 95%
rename from src/main/java/com/example/spring_boot_a/domain/entity/User.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/user/User.java
index dbdfce4..dca91ba 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/User.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/User.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.user;
 
+import com.example.spring_boot_a.domain.entity.review.Review;
 import com.example.spring_boot_a.domain.entity.enums.AddressGu;
 import com.example.spring_boot_a.domain.entity.enums.Gender;
 import com.example.spring_boot_a.domain.entity.enums.SocialLoginType;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/UserFood.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserFood.java
similarity index 81%
rename from src/main/java/com/example/spring_boot_a/domain/entity/UserFood.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/user/UserFood.java
index 2769156..c25ba2f 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/UserFood.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserFood.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.user;
 
+import com.example.spring_boot_a.domain.entity.etc.Food;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/UserMission.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserMission.java
similarity index 83%
rename from src/main/java/com/example/spring_boot_a/domain/entity/UserMission.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/user/UserMission.java
index a59f1a5..60caed3 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/UserMission.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserMission.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.user;
 
+import com.example.spring_boot_a.domain.entity.etc.Mission;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/UserTerm.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserTerm.java
similarity index 82%
rename from src/main/java/com/example/spring_boot_a/domain/entity/UserTerm.java
rename to src/main/java/com/example/spring_boot_a/domain/entity/user/UserTerm.java
index 5872f66..7eb2fb8 100644
--- a/src/main/java/com/example/spring_boot_a/domain/entity/UserTerm.java
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/UserTerm.java
@@ -1,5 +1,6 @@
-package com.example.spring_boot_a.domain.entity;
+package com.example.spring_boot_a.domain.entity.user;
 
+import com.example.spring_boot_a.domain.entity.Term;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/user/converter/UserConverter.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/converter/UserConverter.java
new file mode 100644
index 0000000..e4668e4
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/converter/UserConverter.java
@@ -0,0 +1,65 @@
+package com.example.spring_boot_a.domain.entity.user.converter;
+
+import com.example.spring_boot_a.domain.entity.user.dto.UserRequestDto;
+import com.example.spring_boot_a.domain.entity.user.dto.UserResponseDto;
+import com.example.spring_boot_a.domain.entity.user.User;
+import org.springframework.stereotype.Component;
+
+import java.time.Instant;
+import java.util.List;
+
+@Component
+public class UserConverter {
+
+    public User toUser(UserRequestDto.Create request) {
+        User user = new User();
+        user.setName(request.getName());
+        user.setGender(request.getGender());
+        user.setBirth(request.getBirth());
+        user.setAddress(request.getAddress());
+        user.setEmail(request.getEmail());
+        user.setPhoneNumber(request.getPhoneNumber());
+        user.setSocialType(request.getSocialType());
+        user.setPoint(0);
+        user.setUpdatedAt(Instant.now());
+        return user;
+    }
+
+    public UserResponseDto.CreateResult toCreateResult(User user) {
+        return UserResponseDto.CreateResult.builder()
+                .userId(user.getUserId())
+                .name(user.getName())
+                .email(user.getEmail())
+                .build();
+    }
+
+    public UserResponseDto.Detail toDetail(User user) {
+        return UserResponseDto.Detail.builder()
+                .userId(user.getUserId())
+                .name(user.getName())
+                .gender(user.getGender())
+                .birth(user.getBirth())
+                .address(user.getAddress())
+                .email(user.getEmail())
+                .phoneNumber(user.getPhoneNumber())
+                .point(user.getPoint())
+                .socialType(user.getSocialType())
+                .updatedAt(user.getUpdatedAt())
+                .build();
+    }
+
+    public UserResponseDto.Summary toSummary(User user) {
+        return UserResponseDto.Summary.builder()
+                .userId(user.getUserId())
+                .name(user.getName())
+                .address(user.getAddress())
+                .point(user.getPoint())
+                .build();
+    }
+
+    public List<UserResponseDto.Summary> toSummaryList(List<User> users) {
+        return users.stream()
+                .map(this::toSummary)
+                .toList();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserRequestDto.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserRequestDto.java
new file mode 100644
index 0000000..e364bd2
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserRequestDto.java
@@ -0,0 +1,43 @@
+package com.example.spring_boot_a.domain.entity.user.dto;
+
+import com.example.spring_boot_a.domain.entity.enums.AddressGu;
+import com.example.spring_boot_a.domain.entity.enums.Gender;
+import com.example.spring_boot_a.domain.entity.enums.SocialLoginType;
+import jakarta.validation.constraints.Email;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+
+public class UserRequestDto {
+
+    @Getter
+    @NoArgsConstructor
+    public static class Create {
+
+        @NotBlank(message = "이름은 필수값입니다.")
+        private String name;
+
+        @NotNull(message = "성별은 필수값입니다.")
+        private Gender gender;
+
+        private LocalDate birth;
+
+        @NotNull(message = "주소(구)는 필수값입니다.")
+        private AddressGu address;
+
+        @NotBlank(message = "이메일은 필수값입니다.")
+        @Email(message = "이메일 형식이 올바르지 않습니다.")
+        private String email;
+
+        @NotBlank(message = "전화번호는 필수값입니다.")
+        @Size(max = 20, message = "전화번호는 최대 20자입니다.")
+        private String phoneNumber;
+
+        @NotNull(message = "소셜 타입은 필수값입니다.")
+        private SocialLoginType socialType;
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserResponseDto.java b/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserResponseDto.java
new file mode 100644
index 0000000..bf30f61
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/domain/entity/user/dto/UserResponseDto.java
@@ -0,0 +1,45 @@
+package com.example.spring_boot_a.domain.entity.user.dto;
+
+import com.example.spring_boot_a.domain.entity.enums.AddressGu;
+import com.example.spring_boot_a.domain.entity.enums.Gender;
+import com.example.spring_boot_a.domain.entity.enums.SocialLoginType;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.Instant;
+import java.time.LocalDate;
+
+public class UserResponseDto {
+
+    @Getter
+    @Builder
+    public static class CreateResult {
+        private Long userId;
+        private String name;
+        private String email;
+    }
+
+    @Getter
+    @Builder
+    public static class Detail {
+        private Long userId;
+        private String name;
+        private Gender gender;
+        private LocalDate birth;
+        private AddressGu address;
+        private String email;
+        private String phoneNumber;
+        private Integer point;
+        private SocialLoginType socialType;
+        private Instant updatedAt;
+    }
+
+    @Getter
+    @Builder
+    public static class Summary {
+        private Long userId;
+        private String name;
+        private AddressGu address;
+        private Integer point;
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/apiPayload/code/ApiResponse.java b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/ApiResponse.java
new file mode 100644
index 0000000..db66232
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/ApiResponse.java
@@ -0,0 +1,50 @@
+package com.example.spring_boot_a.global.apiPayload.code;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonPropertyOrder({"isSuccess", "code", "message", "result"})
+public class ApiResponse<T> {
+
+    @JsonProperty("isSuccess")
+    private final Boolean isSuccess;
+
+    @JsonProperty("code")
+    private final String code;
+
+    @JsonProperty("message")
+    private final String message;
+
+    @JsonProperty("result")
+    private T result;
+
+
+    public static <T> ApiResponse<T> onSuccess(BaseSuccessCode code, T result) {
+        return new ApiResponse<>(true, code.getCode(), code.getMessage(), result);
+    }
+
+    public static <T> ApiResponse<T> onSuccess(BaseSuccessCode code) {
+        return new ApiResponse<>(true, code.getCode(), code.getMessage(), null);
+    }
+
+    public static <T> ApiResponse<T> onSuccess(T result) {
+        return new ApiResponse<>(true,
+                GeneralSuccessCode.OK.getCode(),
+                GeneralSuccessCode.OK.getMessage(),
+                result
+        );
+    }
+
+    public static <T> ApiResponse<T> onFailure(BaseErrorCode code, T result) {
+        return new ApiResponse<>(false, code.getCode(), code.getMessage(), result);
+    }
+
+
+    public static <T> ApiResponse<T> onFailure(BaseErrorCode code) {
+        return new ApiResponse<>(false, code.getCode(), code.getMessage(), null);
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseErrorCode.java b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseErrorCode.java
new file mode 100644
index 0000000..42ad0f1
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseErrorCode.java
@@ -0,0 +1,10 @@
+package com.example.spring_boot_a.global.apiPayload.code;
+
+import org.springframework.http.HttpStatus;
+
+public interface BaseErrorCode {
+
+    HttpStatus getStatus();
+    String getCode();
+    String getMessage();
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseSuccessCode.java b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseSuccessCode.java
new file mode 100644
index 0000000..8c0bc5c
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/BaseSuccessCode.java
@@ -0,0 +1,10 @@
+package com.example.spring_boot_a.global.apiPayload.code;
+
+import org.springframework.http.HttpStatus;
+
+public interface BaseSuccessCode {
+
+    HttpStatus getStatus();
+    String getCode();
+    String getMessage();
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralErrorCode.java b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralErrorCode.java
new file mode 100644
index 0000000..4ce41a5
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralErrorCode.java
@@ -0,0 +1,31 @@
+package com.example.spring_boot_a.global.apiPayload.code;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+
+@Getter
+@AllArgsConstructor
+public enum GeneralErrorCode implements BaseErrorCode {
+
+    BAD_REQUEST(HttpStatus.BAD_REQUEST,
+            "COMMON400_1",
+            "잘못된 요청입니다."),
+    UNAUTHORIZED(HttpStatus.UNAUTHORIZED,
+            "AUTH401_1",
+            "인증이 필요합니다."),
+    FORBIDDEN(HttpStatus.FORBIDDEN,
+            "AUTH403_1",
+            "요청이 거부되었습니다."),
+    NOT_FOUND(HttpStatus.NOT_FOUND,
+            "COMMON404_1",
+            "요청한 리소스를 찾을 수 없습니다."),
+    INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR,
+            "COMMON500_1"
+    ,"서버 에러입니다.")
+    ;
+
+    private final HttpStatus status;
+    private final String code;
+    private final String message;
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralSuccessCode.java b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralSuccessCode.java
new file mode 100644
index 0000000..0116425
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/apiPayload/code/GeneralSuccessCode.java
@@ -0,0 +1,24 @@
+package com.example.spring_boot_a.global.apiPayload.code;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+
+@Getter
+@AllArgsConstructor
+public enum GeneralSuccessCode implements BaseSuccessCode{
+
+    OK(HttpStatus.OK,
+            "COMMON200_1",
+            "요청이 성공적으로 처리되었습니다."),
+    CREATED(HttpStatus.CREATED,
+            "COMMON201_1",
+            "리소스가 성공적으로 생성되었습니다."),
+    NO_CONTENT(HttpStatus.NO_CONTENT,
+            "COMMON204_1",
+            "성공했지만 반환할 데이터는 없습니다.");
+
+    private final HttpStatus status;
+    private final String code;
+    private final String message;
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/exception/CustomException.java b/src/main/java/com/example/spring_boot_a/global/exception/CustomException.java
new file mode 100644
index 0000000..fd865b3
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/exception/CustomException.java
@@ -0,0 +1,15 @@
+package com.example.spring_boot_a.global.exception;
+
+import com.example.spring_boot_a.global.apiPayload.code.BaseErrorCode;
+import lombok.Getter;
+
+@Getter
+public class CustomException extends RuntimeException{
+
+    private final BaseErrorCode errorCode;
+
+    public CustomException(BaseErrorCode errorCode){
+        super(errorCode.getMessage());
+        this.errorCode = errorCode;
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/global/exception/GlobalExceptionHandler.java b/src/main/java/com/example/spring_boot_a/global/exception/GlobalExceptionHandler.java
new file mode 100644
index 0000000..71d28ff
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/global/exception/GlobalExceptionHandler.java
@@ -0,0 +1,84 @@
+package com.example.spring_boot_a.global.exception;
+
+import com.example.spring_boot_a.global.apiPayload.code.ApiResponse;
+import com.example.spring_boot_a.global.apiPayload.code.BaseErrorCode;
+import com.example.spring_boot_a.global.apiPayload.code.GeneralErrorCode;
+import jakarta.persistence.EntityNotFoundException;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+
+    @ExceptionHandler(CustomException.class)
+    public ResponseEntity<ApiResponse<Object>> handleCustomException(CustomException e) {
+        BaseErrorCode errorCode = e.getErrorCode();
+
+        ApiResponse<Object> body = ApiResponse.onFailure(errorCode);
+
+        return ResponseEntity
+                .status(errorCode.getStatus())
+                .body(body);
+    }
+
+
+    @ExceptionHandler(EntityNotFoundException.class)
+    public ResponseEntity<ApiResponse<Object>> handleEntityNotFound(EntityNotFoundException e) {
+
+        ApiResponse<Object> body = ApiResponse.onFailure(
+                GeneralErrorCode.NOT_FOUND,
+                e.getMessage()    // result에 상세 메시지를 실어 줄 수 있음
+        );
+
+        return ResponseEntity
+                .status(GeneralErrorCode.NOT_FOUND.getStatus())
+                .body(body);
+    }
+
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<ApiResponse<Object>> handleValidation(MethodArgumentNotValidException e) {
+        String msg = e.getBindingResult().getAllErrors().get(0).getDefaultMessage();
+
+        ApiResponse<Object> body = ApiResponse.onFailure(
+                GeneralErrorCode.BAD_REQUEST,
+                msg   // result에 검증 실패 메시지
+        );
+
+        return ResponseEntity
+                .status(GeneralErrorCode.BAD_REQUEST.getStatus())
+                .body(body);
+    }
+
+
+    @ExceptionHandler(DataIntegrityViolationException.class)
+    public ResponseEntity<ApiResponse<Object>> handleIntegrity(DataIntegrityViolationException e) {
+
+        ApiResponse<Object> body = ApiResponse.onFailure(
+                GeneralErrorCode.BAD_REQUEST,
+                "데이터 제약 조건 위반(중복 등)"
+        );
+
+        return ResponseEntity
+                .status(GeneralErrorCode.BAD_REQUEST.getStatus())
+                .body(body);
+    }
+
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ApiResponse<Object>> handleException(Exception e) {
+
+        ApiResponse<Object> body = ApiResponse.onFailure(
+                GeneralErrorCode.INTERNAL_SERVER_ERROR,
+                e.getMessage()
+        );
+
+        return ResponseEntity
+                .status(GeneralErrorCode.INTERNAL_SERVER_ERROR.getStatus())
+                .body(body);
+    }
+}
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/ReplyRepository.java b/src/main/java/com/example/spring_boot_a/repository/ReplyRepository.java
similarity index 70%
rename from src/main/java/com/example/spring_boot_a/domain/repository/ReplyRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/ReplyRepository.java
index 839e751..1649a2a 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/ReplyRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/ReplyRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.domain.entity.Reply;
+import com.example.spring_boot_a.domain.entity.etc.Reply;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Collection;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewPhotoRepository.java b/src/main/java/com/example/spring_boot_a/repository/ReviewPhotoRepository.java
similarity index 70%
rename from src/main/java/com/example/spring_boot_a/domain/repository/ReviewPhotoRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/ReviewPhotoRepository.java
index 269afb0..b6cd176 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewPhotoRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/ReviewPhotoRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.domain.entity.ReviewPhoto;
+import com.example.spring_boot_a.domain.entity.etc.ReviewPhoto;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Collection;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepository.java b/src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepository.java
similarity index 71%
rename from src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepository.java
index 1e0975e..6d8a710 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.api.review.dto.MyReviewItemDto;
+import com.example.spring_boot_a.domain.entity.review.dto.MyReviewItemDto;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepositoryImpl.java b/src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepositoryImpl.java
similarity index 97%
rename from src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepositoryImpl.java
rename to src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepositoryImpl.java
index a38e806..745ea4c 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewQueryRepositoryImpl.java
+++ b/src/main/java/com/example/spring_boot_a/repository/ReviewQueryRepositoryImpl.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.api.review.dto.MyReviewItemDto;
+import com.example.spring_boot_a.domain.entity.review.dto.MyReviewItemDto;
 import com.example.spring_boot_a.domain.entity.QReply;
 import com.example.spring_boot_a.domain.entity.QReview;
 import com.example.spring_boot_a.domain.entity.QReviewPhoto;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewRepository.java b/src/main/java/com/example/spring_boot_a/repository/ReviewRepository.java
similarity index 92%
rename from src/main/java/com/example/spring_boot_a/domain/repository/ReviewRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/ReviewRepository.java
index df6a600..4ad20a9 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/ReviewRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/ReviewRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.domain.entity.Review;
+import com.example.spring_boot_a.domain.entity.review.Review;
 import org.springframework.data.domain.*;
 import org.springframework.data.jpa.repository.*;
 import org.springframework.data.repository.query.Param;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/StoreRepository.java b/src/main/java/com/example/spring_boot_a/repository/StoreRepository.java
similarity index 78%
rename from src/main/java/com/example/spring_boot_a/domain/repository/StoreRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/StoreRepository.java
index 324bb86..5debcd8 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/StoreRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/StoreRepository.java
@@ -1,4 +1,4 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
 import com.example.spring_boot_a.domain.entity.Store;
 import org.springframework.data.jpa.repository.JpaRepository;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/UserMissionRepository.java b/src/main/java/com/example/spring_boot_a/repository/UserMissionRepository.java
similarity index 86%
rename from src/main/java/com/example/spring_boot_a/domain/repository/UserMissionRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/UserMissionRepository.java
index 73b7b6b..e939f42 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/UserMissionRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/UserMissionRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.domain.entity.UserMission;
+import com.example.spring_boot_a.domain.entity.user.UserMission;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
diff --git a/src/main/java/com/example/spring_boot_a/domain/repository/UserRepository.java b/src/main/java/com/example/spring_boot_a/repository/UserRepository.java
similarity index 55%
rename from src/main/java/com/example/spring_boot_a/domain/repository/UserRepository.java
rename to src/main/java/com/example/spring_boot_a/repository/UserRepository.java
index 83328ca..acfc985 100644
--- a/src/main/java/com/example/spring_boot_a/domain/repository/UserRepository.java
+++ b/src/main/java/com/example/spring_boot_a/repository/UserRepository.java
@@ -1,6 +1,6 @@
-package com.example.spring_boot_a.domain.repository;
+package com.example.spring_boot_a.repository;
 
-import com.example.spring_boot_a.domain.entity.User;
+import com.example.spring_boot_a.domain.entity.user.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface UserRepository extends JpaRepository<User, Long> {
diff --git a/src/main/java/com/example/spring_boot_a/domain/service/MyReviewQueryService.java b/src/main/java/com/example/spring_boot_a/service/MyReviewQueryService.java
similarity index 75%
rename from src/main/java/com/example/spring_boot_a/domain/service/MyReviewQueryService.java
rename to src/main/java/com/example/spring_boot_a/service/MyReviewQueryService.java
index b1d5aa0..7e9a6a8 100644
--- a/src/main/java/com/example/spring_boot_a/domain/service/MyReviewQueryService.java
+++ b/src/main/java/com/example/spring_boot_a/service/MyReviewQueryService.java
@@ -1,7 +1,7 @@
-package com.example.spring_boot_a.domain.service;
+package com.example.spring_boot_a.service;
 
-import com.example.spring_boot_a.api.review.dto.MyReviewItemDto;
-import com.example.spring_boot_a.domain.repository.ReviewQueryRepository;
+import com.example.spring_boot_a.domain.entity.review.dto.MyReviewItemDto;
+import com.example.spring_boot_a.repository.ReviewQueryRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.*;
 import org.springframework.stereotype.Service;
diff --git a/src/main/java/com/example/spring_boot_a/api/review/ReviewService.java b/src/main/java/com/example/spring_boot_a/service/ReviewService.java
similarity index 89%
rename from src/main/java/com/example/spring_boot_a/api/review/ReviewService.java
rename to src/main/java/com/example/spring_boot_a/service/ReviewService.java
index fb4cb04..1e9f2a4 100644
--- a/src/main/java/com/example/spring_boot_a/api/review/ReviewService.java
+++ b/src/main/java/com/example/spring_boot_a/service/ReviewService.java
@@ -1,8 +1,14 @@
-package com.example.spring_boot_a.api.review;
+package com.example.spring_boot_a.service;
 
-import com.example.spring_boot_a.api.review.dto.*;
 import com.example.spring_boot_a.domain.entity.*;
-import com.example.spring_boot_a.domain.repository.*;
+import com.example.spring_boot_a.domain.entity.etc.Reply;
+import com.example.spring_boot_a.domain.entity.etc.ReviewPhoto;
+import com.example.spring_boot_a.domain.entity.review.Review;
+import com.example.spring_boot_a.domain.entity.review.dto.ReviewCreateRequest;
+import com.example.spring_boot_a.domain.entity.review.dto.ReviewResponse;
+import com.example.spring_boot_a.domain.entity.review.dto.StarSummaryResponse;
+import com.example.spring_boot_a.domain.entity.user.User;
+import com.example.spring_boot_a.repository.*;
 import jakarta.persistence.EntityNotFoundException;
 import org.springframework.data.domain.*;
 import org.springframework.stereotype.Service;
@@ -40,7 +46,6 @@ public Long create(Long userId, Long storeId, ReviewCreateRequest req) {
                 .orElseThrow(() -> new EntityNotFoundException("store not found"));
 
         Review r = new Review();
-        r.setUser(user);
         r.setStore(store);
         r.setStar(req.star());
         r.setContent(req.content());
diff --git a/src/main/java/com/example/spring_boot_a/service/UserService.java b/src/main/java/com/example/spring_boot_a/service/UserService.java
new file mode 100644
index 0000000..95e2342
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/service/UserService.java
@@ -0,0 +1,14 @@
+package com.example.spring_boot_a.service;
+
+import com.example.spring_boot_a.domain.entity.user.User;
+
+import java.util.List;
+
+public interface UserService {
+
+    User createUser(User user);
+
+    User getUser(Long userId);
+
+    List<User>  getUsers();
+}
diff --git a/src/main/java/com/example/spring_boot_a/service/UserServiceImpl.java b/src/main/java/com/example/spring_boot_a/service/UserServiceImpl.java
new file mode 100644
index 0000000..ff0545c
--- /dev/null
+++ b/src/main/java/com/example/spring_boot_a/service/UserServiceImpl.java
@@ -0,0 +1,39 @@
+package com.example.spring_boot_a.service;
+
+import com.example.spring_boot_a.domain.entity.user.User;
+import com.example.spring_boot_a.repository.UserRepository;
+import jakarta.persistence.EntityNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class UserServiceImpl implements UserService {
+
+    private final UserRepository userRepository;
+
+
+    @Override
+    @Transactional
+    public User createUser(User user) {
+        return userRepository.save(user);
+    }
+
+
+    @Override
+    public User getUser(Long userId) {
+        return userRepository.findById(userId)
+                .orElseThrow(() ->
+                        new EntityNotFoundException("User not found. id=" + userId));
+    }
+
+
+    @Override
+    public List<User> getUsers() {
+        return userRepository.findAll();
+    }
+}