diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e0457e2..9aa4f79 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -27,7 +27,7 @@
             android:exported="false"
             />
         <activity
-            android:name=".views.MyBookshelfActivity"
+            android:name=".views.LoginActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -36,6 +36,10 @@
             </intent-filter>
         </activity>
         <activity
+            android:name=".views.MyBookshelfActivity"
+            android:exported="true" >
+        </activity>
+        <activity
             android:name=".HelloActivity"
             android:exported="false" />
     </application>
diff --git a/app/src/main/java/com/example/citrusclient/views/LoginActivity.java b/app/src/main/java/com/example/citrusclient/views/LoginActivity.java
new file mode 100644
index 0000000..9a570e6
--- /dev/null
+++ b/app/src/main/java/com/example/citrusclient/views/LoginActivity.java
@@ -0,0 +1,35 @@
+package com.example.citrusclient.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; //
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+import com.example.citrusclient.R;
+
+public class LoginActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        EdgeToEdge.enable(this);
+        setContentView(R.layout.activity_login);
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
+            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
+            return insets;
+            Button nextButton = (Button)findViewById(R.id.button);
+            nextButton.setOnClickListener(new View.OnClickListener(){
+                public void onClick(View v){
+                    Intent intent = Intent(LoginActivity.this,MainActivity.class);
+                    startActivity(intent);
+                }
+            })
+        });
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
new file mode 100644
index 0000000..7f1f784
--- /dev/null
+++ b/app/src/main/res/layout/activity_login.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".views.LoginActivity">
+
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:scaleX="2"
+        android:scaleY="2"
+        android:text="Login"
+        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="0.256" />
+
+    <EditText
+        android:id="@+id/editTextTextEmailAddress"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:inputType="textEmailAddress"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.502"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.448" />
+
+    <EditText
+        android:id="@+id/editTextTextPassword"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="212dp"
+        android:ems="10"
+        android:inputType="textPassword"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.502"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress"
+        app:layout_constraintVertical_bias="0.286" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="ログイン"
+        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="0.74" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file