diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 1719529..1b48e1b 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -30,7 +30,7 @@
         targetCompatibility = JavaVersion.VERSION_1_8
     }
     buildFeatures {
-        viewBinding = true
+        viewBinding = false
     }
 }
 
diff --git a/app/src/main/java/com/example/tampopo_client/models/FriendRequest.java b/app/src/main/java/com/example/tampopo_client/models/FriendRequest.java
new file mode 100644
index 0000000..a417827
--- /dev/null
+++ b/app/src/main/java/com/example/tampopo_client/models/FriendRequest.java
@@ -0,0 +1,4 @@
+package com.example.tampopo_client.models;
+
+public class FriendRequest {
+}
diff --git a/app/src/main/java/com/example/tampopo_client/resources/FriendRequestResource.java b/app/src/main/java/com/example/tampopo_client/resources/FriendRequestResource.java
new file mode 100644
index 0000000..9d3eb0b
--- /dev/null
+++ b/app/src/main/java/com/example/tampopo_client/resources/FriendRequestResource.java
@@ -0,0 +1,38 @@
+package com.example.tampopo_client.resources;
+
+
+import com.example.tampopo_client.models.FriendRequest;
+
+import java.util.List;
+
+import retrofit2.Call;
+import retrofit2.http.DELETE;
+import retrofit2.http.Field;
+import retrofit2.http.FormUrlEncoded;
+import retrofit2.http.GET;
+import retrofit2.http.POST;
+import retrofit2.http.Path;
+import retrofit2.http.Query;
+
+public interface FriendRequestResource {
+
+    //このAPIではリクエストのボディをx-www-form-urlencoded という形式で送ります
+    @FormUrlEncoded
+    @POST("friend-requests")
+    Call<FriendRequest> postFriendRequest(
+            @Field("sender-id") String senderId,
+            @Field("receiver-id") String receiverId,
+            @Field("token") String token
+    );
+
+    @GET("friend-requests")
+    Call<List<FriendRequest>> getFriendRequests(
+            @Query("token") String token
+    );
+
+    @DELETE("friend-requests/{friend-request-id}")
+    Call<Void> deleteFriendRequest(
+            @Path("friend-request-id") String friendRequestId,
+            @Query("token") String token
+    );
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/tampopo_client/resources/FriendsResource.java b/app/src/main/java/com/example/tampopo_client/resources/FriendsResource.java
index c390536..d323d6c 100644
--- a/app/src/main/java/com/example/tampopo_client/resources/FriendsResource.java
+++ b/app/src/main/java/com/example/tampopo_client/resources/FriendsResource.java
@@ -14,7 +14,7 @@
 public interface FriendsResource {
     @FormUrlEncoded
     @POST("friends")
-    Call<FriendPair> postFriends(
+    Call<FriendPair> createFriend(
             @Field("token") String token,
             @Field("user0-id") String user0Id,
             @Field("user1-id") String user1Id
@@ -27,7 +27,7 @@
     );
 
     @DELETE("friends/{pair_id}/")
-    void deleteFriend(
+    Call<Void> deleteFriend(
             @Query("token") String token,
             @Path("pair_id") String pair_id
     );
diff --git a/app/src/main/java/com/example/tampopo_client/views/LaunchActivity.java b/app/src/main/java/com/example/tampopo_client/views/LaunchActivity.java
index ecdf98e..3c966e0 100644
--- a/app/src/main/java/com/example/tampopo_client/views/LaunchActivity.java
+++ b/app/src/main/java/com/example/tampopo_client/views/LaunchActivity.java
@@ -1,6 +1,9 @@
 package com.example.tampopo_client.views;
 
+import android.content.Intent;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
@@ -22,5 +25,13 @@
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
+        Button button_register = (Button) findViewById(R.id.Registerbutton);
+        button_register.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(LaunchActivity.this,RegisterActivity.class);
+                startActivity(intent);
+            }
+        });
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/res/layout/activity_launch.xml b/app/src/main/res/layout/activity_launch.xml
index 2c9d1d3..e11fd8c 100644
--- a/app/src/main/res/layout/activity_launch.xml
+++ b/app/src/main/res/layout/activity_launch.xml
@@ -13,6 +13,7 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="tampopo"
+      android:textSize="25dp"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintHorizontal_bias="0.498"
@@ -21,9 +22,9 @@
       app:layout_constraintVertical_bias="0.276" />
 
   <Button
-      android:id="@+id/新規登録"
-      android:layout_width="wrap_content"
-      android:layout_height="wrap_content"
+      android:id="@+id/Registerbutton"
+      android:layout_width="284dp"
+      android:layout_height="53dp"
       android:text="新規登録"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
@@ -33,9 +34,9 @@
       app:layout_constraintVertical_bias="0.727" />
 
   <Button
-      android:id="@+id/ログイン"
-      android:layout_width="107dp"
-      android:layout_height="51dp"
+      android:id="@+id/Loginbutton"
+      android:layout_width="279dp"
+      android:layout_height="53dp"
       android:text="ログイン"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
diff --git a/app/src/main/res/layout/activity_register.xml b/app/src/main/res/layout/activity_register.xml
index 92ac08c..4259034 100644
--- a/app/src/main/res/layout/activity_register.xml
+++ b/app/src/main/res/layout/activity_register.xml
@@ -7,4 +7,54 @@
     android:layout_height="match_parent"
     tools:context=".views.RegisterActivity">
 
+    <TextView
+        android:id="@+id/registerText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="新規登録"
+        android:textSize="20dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.19" />
+
+<!--    <EditText-->
+<!--        android:id="@+id/editTextPassword"-->
+<!--        android:layout_width="229dp"-->
+<!--        android:layout_height="45dp"-->
+<!--        android:ems="10"-->
+<!--        android:hint="パスワードを入力してください"-->
+<!--        android:inputType="textPassword"-->
+<!--        android:textSize="15dp"-->
+<!--        app:layout_constraintBottom_toBottomOf="parent"-->
+<!--        app:layout_constraintEnd_toEndOf="parent"-->
+<!--        app:layout_constraintStart_toStartOf="parent"-->
+<!--        app:layout_constraintTop_toTopOf="parent"-->
+<!--        app:layout_constraintVertical_bias="0.481" />-->
+
+    <Button
+        android:id="@+id/Registerbutton2"
+        android:layout_width="300dp"
+        android:layout_height="47dp"
+        android:text="登録"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.676" />
+
+    <TextView
+        android:id="@+id/alreadyHaveAccount"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="すでにアカウントをお持ちの方は"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.291"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.753" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 276209b..fb89647 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Tue Jul 01 13:45:32 JST 2025
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists