diff --git a/src/main/java/aromanticcat/umcproject/UmcProjectApplication.java b/src/main/java/aromanticcat/umcproject/UmcProjectApplication.java
index 0882922..7cf16b1 100644
--- a/src/main/java/aromanticcat/umcproject/UmcProjectApplication.java
+++ b/src/main/java/aromanticcat/umcproject/UmcProjectApplication.java
@@ -2,12 +2,14 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
+@EnableJpaAuditing
 @SpringBootApplication
 public class UmcProjectApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(UmcProjectApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(UmcProjectApplication.class, args);
+    }
 
 }
diff --git a/src/main/java/aromanticcat/umcproject/entity/BaseEntity.java b/src/main/java/aromanticcat/umcproject/entity/BaseEntity.java
new file mode 100644
index 0000000..93ab297
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/BaseEntity.java
@@ -0,0 +1,21 @@
+package aromanticcat.umcproject.entity;
+
+import java.time.LocalDateTime;
+import javax.persistence.EntityListeners;
+import javax.persistence.MappedSuperclass;
+import lombok.Getter;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+@MappedSuperclass
+@EntityListeners(AuditingEntityListener.class)
+@Getter
+public abstract class BaseEntity {
+
+    @CreatedDate
+    private LocalDateTime createdAt;
+
+    @LastModifiedDate
+    private LocalDateTime updatedAt;
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/Friend.java b/src/main/java/aromanticcat/umcproject/entity/Friend.java
new file mode 100644
index 0000000..82831e7
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/Friend.java
@@ -0,0 +1,29 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class Friend extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @JoinColumn(name = "to_user_id")
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Member member;
+
+    private Long from_user_id;
+
+    private boolean are_we_friend;
+
+    private int times;
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/ItemBox.java b/src/main/java/aromanticcat/umcproject/entity/ItemBox.java
new file mode 100644
index 0000000..7c2f188
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/ItemBox.java
@@ -0,0 +1,24 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class ItemBox extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @JoinColumn(name = "member_id")
+    @OneToOne(fetch = FetchType.LAZY)
+    private Member member;
+
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/Member.java b/src/main/java/aromanticcat/umcproject/entity/Member.java
new file mode 100644
index 0000000..30dba2d
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/Member.java
@@ -0,0 +1,39 @@
+package aromanticcat.umcproject.entity;
+
+import java.util.ArrayList;
+import java.util.List;
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class Member extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String nickname;
+
+    private String email;
+
+    private int coin;
+
+    @OneToMany(mappedBy = "member", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private List<MemberMission> memberMissions = new ArrayList<>();
+
+    @OneToMany(mappedBy = "member", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private List<Friend> friends = new ArrayList<>();
+
+    @OneToMany(mappedBy = "member", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private List<NangmanLetter> nangmanLetters = new ArrayList<>();
+
+    @OneToMany(mappedBy = "member", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private List<NangmanReply> nangmanReplies = new ArrayList<>();
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/MemberMission.java b/src/main/java/aromanticcat/umcproject/entity/MemberMission.java
new file mode 100644
index 0000000..afff93d
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/MemberMission.java
@@ -0,0 +1,32 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class MemberMission extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private int count;
+
+    private boolean status;
+
+    @JoinColumn(name = "member_id")
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Member member;
+
+    @JoinColumn(name = "mission_id")
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Mission mission;
+
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/Mission.java b/src/main/java/aromanticcat/umcproject/entity/Mission.java
new file mode 100644
index 0000000..79e3089
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/Mission.java
@@ -0,0 +1,30 @@
+package aromanticcat.umcproject.entity;
+
+import java.util.ArrayList;
+import java.util.List;
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class Mission extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String name;
+
+    private String content;
+
+    private String reward;
+
+    @OneToMany(mappedBy = "mission", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private List<MemberMission> memberMissions = new ArrayList<>();
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/NangmanLetter.java b/src/main/java/aromanticcat/umcproject/entity/NangmanLetter.java
new file mode 100644
index 0000000..d1cebe5
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/NangmanLetter.java
@@ -0,0 +1,43 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class NangmanLetter extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String sender_nickname;
+
+    private boolean is_public;
+
+    private String content;
+
+    private boolean has_response;
+
+    private int thumbs_up_cnt;
+
+    private int heart_cnt;
+
+    private int crying_cnt;
+
+    private int clover_cnt;
+
+    private int clap_cnt;
+
+    private int star_cnt;
+
+    @JoinColumn(name = "member_id")
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Member member;
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/NangmanReply.java b/src/main/java/aromanticcat/umcproject/entity/NangmanReply.java
new file mode 100644
index 0000000..1ad1741
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/NangmanReply.java
@@ -0,0 +1,32 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.OneToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class NangmanReply extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String response_sender_nickname;
+
+    private String content;
+
+    @JoinColumn(name = "letter_id")
+    @OneToOne(fetch = FetchType.LAZY)
+    private NangmanLetter nangmanLetter;
+
+    @JoinColumn(name = "member_id")
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Member member;
+}
diff --git a/src/main/java/aromanticcat/umcproject/entity/Reward.java b/src/main/java/aromanticcat/umcproject/entity/Reward.java
new file mode 100644
index 0000000..e9c67e4
--- /dev/null
+++ b/src/main/java/aromanticcat/umcproject/entity/Reward.java
@@ -0,0 +1,32 @@
+package aromanticcat.umcproject.entity;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class Reward extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private int type;
+
+    @Column(columnDefinition = "TEXT")
+    private String image_url;
+
+    private String name;
+
+    @JoinColumn(name = "mission_id")
+    @OneToOne(fetch = FetchType.LAZY)
+    private Mission mission;
+
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 1e26b07..87c3ac4 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,6 +1,6 @@
 spring:
   datasource:
-    url: jdbc:mysql://umc-db.clum6u48wd0b.ap-northeast-2.rds.amazonaws.com/umc
+    url: jdbc:mysql://umc-db.clum6u48wd0b.ap-northeast-2.rds.amazonaws.com/nangman
     username: root
     password: umcteame
     driver-class-name: com.mysql.cj.jdbc.Driver
@@ -16,4 +16,4 @@ spring:
         use_sql_comments: true
         hbm2ddl:
           auto: update
-        default_batch_fetch_size: 1000
\ No newline at end of file
+        default_batch_fetch_size: 1000