diff --git a/src/main/java/com/soongsil/CoffeeChat/entity/User.java b/src/main/java/com/soongsil/CoffeeChat/entity/User.java
index 58f0d1f..194e147 100644
--- a/src/main/java/com/soongsil/CoffeeChat/entity/User.java
+++ b/src/main/java/com/soongsil/CoffeeChat/entity/User.java
@@ -27,5 +27,4 @@ public class User {
     @Column
     private String role;
 
-    //TODO: 이제 추가적으로 입력받는 정보
 }
diff --git a/src/main/java/com/soongsil/CoffeeChat/repository/MenteeRepository.java b/src/main/java/com/soongsil/CoffeeChat/repository/MenteeRepository.java
new file mode 100644
index 0000000..5cc7c91
--- /dev/null
+++ b/src/main/java/com/soongsil/CoffeeChat/repository/MenteeRepository.java
@@ -0,0 +1,8 @@
+package com.soongsil.CoffeeChat.repository;
+
+import com.soongsil.CoffeeChat.entity.Mentee;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MenteeRepository extends JpaRepository<Mentee, Long> {
+    Mentee findByUsername(String username);
+}
diff --git a/src/main/java/com/soongsil/CoffeeChat/repository/MentorRepository.java b/src/main/java/com/soongsil/CoffeeChat/repository/MentorRepository.java
new file mode 100644
index 0000000..2823745
--- /dev/null
+++ b/src/main/java/com/soongsil/CoffeeChat/repository/MentorRepository.java
@@ -0,0 +1,8 @@
+package com.soongsil.CoffeeChat.repository;
+
+import com.soongsil.CoffeeChat.entity.Mentor;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MentorRepository extends JpaRepository<Mentor, Long> {
+    Mentor findByUsername(String username);
+}