diff --git a/src/main/java/org/ntlab/tampoposerver/models/User.java b/src/main/java/org/ntlab/tampoposerver/models/User.java
index 3f82997..76713a6 100644
--- a/src/main/java/org/ntlab/tampoposerver/models/User.java
+++ b/src/main/java/org/ntlab/tampoposerver/models/User.java
@@ -1,5 +1,6 @@
 package org.ntlab.tampoposerver.models;
 
+import java.util.ArrayList;
 import java.util.UUID;
 
 public class User {
@@ -9,6 +10,7 @@
     private String email;
     private String icon;
     private String token;
+    private ArrayList<FriendPair> friendPairs = new ArrayList<>();
 
     public User(String userId, String password){
         this.userId = userId;
@@ -77,6 +79,14 @@
         this.token = token;
     }
 
+    public ArrayList<FriendPair> getFriendPairs() {
+        return friendPairs;
+    }
+
+    public void setFriendPairs(ArrayList<FriendPair> friendPairs) {
+        this.friendPairs = friendPairs;
+    }
+
 
 }
 
diff --git a/src/main/java/org/ntlab/tampoposerver/repositories/UserRepository.java b/src/main/java/org/ntlab/tampoposerver/repositories/UserRepository.java
index ec2bef3..a571337 100644
--- a/src/main/java/org/ntlab/tampoposerver/repositories/UserRepository.java
+++ b/src/main/java/org/ntlab/tampoposerver/repositories/UserRepository.java
@@ -1,22 +1,49 @@
 package org.ntlab.tampoposerver.repositories;
 
+import org.ntlab.tampoposerver.models.FriendPair;
 import org.ntlab.tampoposerver.models.User;
 import org.springframework.stereotype.Repository;
 
+import java.util.ArrayList;
 import java.util.HashMap;
 
 @Repository
 public class UserRepository {
     private final HashMap<String, User> userMap = new HashMap<>();
+
+    public User addUser(String userId, String password) {
+        User u = new User(userId, password);
+        userMap.put(userId, u);
+        return u;
+    }
+
     public User addUser(String userId, String name, String password, String email, String icon) {
         User u = new User(userId, name, password, email, icon);
         userMap.put(userId, u);
         return u;
     }
-    public  User getUser(String userId) {
+
+    public User getUser(String userId) {
         return userMap.get(userId);
     }
+
     public User deleteUser(String userId) {
         return userMap.remove(userId);
     }
+
+    public User addFriendPair(String userId, FriendPair pair) {
+        User user = getUser(userId);
+        user.getFriendPairs().add(pair);
+        return user;
+    }
+
+    public ArrayList<FriendPair> getFriendPairs(String userId) {
+        User user = getUser(userId);
+        return user.getFriendPairs();
+    }
+
+    public void deleteFriendPair(String userId, FriendPair pair) {
+        User user = getUser(userId);
+        user.getFriendPairs().remove(pair);
+    }
 }
diff --git a/src/test/java/org/ntlab/tampoposerver/repositories/UserRepositoryTest.java b/src/test/java/org/ntlab/tampoposerver/repositories/UserRepositoryTest.java
index c143e92..08c3f3b 100644
--- a/src/test/java/org/ntlab/tampoposerver/repositories/UserRepositoryTest.java
+++ b/src/test/java/org/ntlab/tampoposerver/repositories/UserRepositoryTest.java
@@ -1,23 +1,30 @@
 package org.ntlab.tampoposerver.repositories;
 
 import org.junit.jupiter.api.Test;
+import org.ntlab.tampoposerver.models.FriendPair;
 import org.ntlab.tampoposerver.models.User;
 import org.springframework.boot.test.context.SpringBootTest;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 @SpringBootTest
 public class UserRepositoryTest {
     @Test
     void contextLoads() {
-        UserRepository userRepository = new UserRepository();
+       UserRepository userRepository = new UserRepository();
+//        User u1 = userRepository.addUser("u01", "asdf", "xyz","asdf@gmail.com","123a876bca878de3");
+//        User u2 = userRepository.addUser("u02", "zcv", "abc","dfgdf@gmail.com","123a876bca878d125");
+//        User u = userRepository.getUser("u02");
+//        assertEquals(u2, u);
+//        assertNotEquals(u1, u);
+//        userRepository.deleteUser("u02");
+//        u = userRepository.getUser("u02");
+//        assertNull(u);
+//        User user = userRepository.addPairId("u01", 2);
         User u1 = userRepository.addUser("u01", "asdf", "xyz","asdf@gmail.com","123a876bca878de3");
         User u2 = userRepository.addUser("u02", "zcv", "abc","dfgdf@gmail.com","123a876bca878d125");
-        User u = userRepository.getUser("u02");
-        assertEquals(u2, u);
-        assertNotEquals(u1, u);
-        userRepository.deleteUser("u02");
-        u = userRepository.getUser("u02");
-        assertNull(u);
+        FriendPair pair = new FriendPair(1, "u01", "u02");
+        userRepository.addFriendPair("u01", pair);
+        userRepository.addFriendPair("u02", pair);
+        System.out.println(userRepository.getFriendPairs("u01").get(0).getUser1Id());
+        System.out.println(userRepository.getFriendPairs("u02").get(0).getUser0Id());
     }
 }
\ No newline at end of file