diff --git a/backend/src/main/java/corea/backend/BackendApplication.java b/backend/src/main/java/corea/BackendApplication.java
similarity index 78%
rename from backend/src/main/java/corea/backend/BackendApplication.java
rename to backend/src/main/java/corea/BackendApplication.java
index ab0ef8be6..a7eea2077 100644
--- a/backend/src/main/java/corea/backend/BackendApplication.java
+++ b/backend/src/main/java/corea/BackendApplication.java
@@ -1,4 +1,4 @@
-package corea.backend;
+package corea;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
@@ -6,7 +6,7 @@
 @SpringBootApplication
 public class BackendApplication {
 
-    public static void main(String[] args) {
+    public static void main(final String[] args) {
         SpringApplication.run(BackendApplication.class, args);
     }
 
diff --git a/backend/src/main/java/corea/domain/Member.java b/backend/src/main/java/corea/domain/Member.java
new file mode 100644
index 000000000..5022e6587
--- /dev/null
+++ b/backend/src/main/java/corea/domain/Member.java
@@ -0,0 +1,24 @@
+package corea.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import static jakarta.persistence.GenerationType.IDENTITY;
+import static lombok.AccessLevel.PROTECTED;
+
+@Entity
+@NoArgsConstructor(access = PROTECTED)
+@AllArgsConstructor
+@Getter
+public class Member {
+
+    @Id
+    @GeneratedValue(strategy = IDENTITY)
+    private Long id;
+
+    private String email;
+}
diff --git a/backend/src/main/java/corea/domain/Room.java b/backend/src/main/java/corea/domain/Room.java
new file mode 100644
index 000000000..71e1f5db7
--- /dev/null
+++ b/backend/src/main/java/corea/domain/Room.java
@@ -0,0 +1,33 @@
+package corea.domain;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import static jakarta.persistence.GenerationType.IDENTITY;
+import static lombok.AccessLevel.PROTECTED;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor(access = PROTECTED)
+@Getter
+public class Room {
+
+    @Id
+    @GeneratedValue(strategy = IDENTITY)
+    private Long id;
+
+    private String title;
+
+    private String repositoryLink;
+
+    private String thumbnailLink;
+
+    private int matchingSize;
+
+    private String keyword;
+}
+
diff --git a/backend/src/test/java/corea/backend/BackendApplicationTests.java b/backend/src/test/java/corea/BackendApplicationTests.java
similarity index 89%
rename from backend/src/test/java/corea/backend/BackendApplicationTests.java
rename to backend/src/test/java/corea/BackendApplicationTests.java
index 20f54ffd4..11c44b064 100644
--- a/backend/src/test/java/corea/backend/BackendApplicationTests.java
+++ b/backend/src/test/java/corea/BackendApplicationTests.java
@@ -1,4 +1,4 @@
-package corea.backend;
+package corea;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;