diff --git a/app/src/main/java/one/nem/kidshift/LoginActivity.java b/app/src/main/java/one/nem/kidshift/LoginActivity.java
index 2c070b8..40d41c8 100644
--- a/app/src/main/java/one/nem/kidshift/LoginActivity.java
+++ b/app/src/main/java/one/nem/kidshift/LoginActivity.java
@@ -54,10 +54,10 @@ public class LoginActivity extends AppCompatActivity {
 
         logger = loggerFactory.create("LoginActivity");
 
-        EditText emailEditText = findViewById(R.id.emailEditText);
-        EditText passwordEditText = findViewById(R.id.passwordEditText);
+        EditText emailEditText = findViewById(R.id.parentLoginEmailEditText);
+        EditText passwordEditText = findViewById(R.id.parentLoginPasswordEditText);
 
-        findViewById(R.id.loginButton).setOnClickListener(v -> {
+        findViewById(R.id.parentLoginButton).setOnClickListener(v -> {
             String email = emailEditText.getText().toString(); // TODO: メールアドレスのバリデーション
             String password = passwordEditText.getText().toString();
 
@@ -87,8 +87,12 @@ public class LoginActivity extends AppCompatActivity {
             });
         });
 
-        findViewById(R.id.intentRegisterButton).setOnClickListener(v -> {
+        findViewById(R.id.toRegisterButton).setOnClickListener(v -> {
             startActivity(new Intent(this, RegisterActivity.class));
         });
+
+        findViewById(R.id.toChildLoginButton).setOnClickListener(v -> {
+            startActivity(new Intent(this, ChildLoginActivity.class));
+        });
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/one/nem/kidshift/RegisterActivity.java b/app/src/main/java/one/nem/kidshift/RegisterActivity.java
index f251e9d..4f21899 100644
--- a/app/src/main/java/one/nem/kidshift/RegisterActivity.java
+++ b/app/src/main/java/one/nem/kidshift/RegisterActivity.java
@@ -53,10 +53,10 @@ public class RegisterActivity extends AppCompatActivity {
 
         logger = loggerFactory.create("RegisterActivity");
 
-        EditText emailEditText = findViewById(R.id.emailEditText); // TODO: メールアドレスのバリデーション
-        EditText passwordEditText = findViewById(R.id.passwordEditText);
+        EditText emailEditText = findViewById(R.id.parentRegisterEmailEditText); // TODO: メールアドレスのバリデーション
+        EditText passwordEditText = findViewById(R.id.parentRegisterPasswordEditText);
 
-        findViewById(R.id.registerButton).setOnClickListener(v -> {
+        findViewById(R.id.parentRegisterButton).setOnClickListener(v -> {
             String email = emailEditText.getText().toString();
             String password = passwordEditText.getText().toString();
 
@@ -86,8 +86,12 @@ public class RegisterActivity extends AppCompatActivity {
             });
         });
 
-        findViewById(R.id.intentLoginButton).setOnClickListener(v -> {
+        findViewById(R.id.toLoginButton).setOnClickListener(v -> {
             startActivity(new Intent(this, LoginActivity.class));
         });
+
+        findViewById(R.id.toChildLoginButton).setOnClickListener(v -> {
+            startActivity(new Intent(this, ChildLoginActivity.class));
+        });
     }
 }
\ 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
index 4807f50..74c93a1 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -7,43 +7,85 @@
     android:layout_height="match_parent"
     tools:context=".LoginActivity">
 
-    <LinearLayout
-        android:id="@+id/inputContainer"
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/linearLayout3"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <EditText
-            android:id="@+id/emailEditText"
+        <TextView
+            android:id="@+id/titleTextView"
+            android:layout_width="wrap_content"
+            android:layout_height="0dp"
+            android:layout_marginBottom="128dp"
+            android:text="KidShiftにログイン"
+            android:textSize="32dp"
+            app:layout_constraintBottom_toTopOf="@+id/inputContainer"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+        <LinearLayout
+            android:id="@+id/inputContainer"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:ems="10"
-            android:inputType="textEmailAddress" />
+            android:layout_marginStart="24dp"
+            android:layout_marginEnd="24dp"
+            android:layout_marginBottom="128dp"
+            android:gravity="center_horizontal"
+            android:orientation="vertical"
+            android:weightSum="10"
+            app:layout_constraintBottom_toTopOf="@+id/parentLoginButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent">
 
-        <EditText
-            android:id="@+id/passwordEditText"
-            android:layout_width="match_parent"
+            <com.google.android.material.textfield.TextInputLayout
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="8dp"
+                android:hint="メールアドレス">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/parentLoginEmailEditText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textEmailAddress" />
+            </com.google.android.material.textfield.TextInputLayout>
+
+            <com.google.android.material.textfield.TextInputLayout
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:hint="パスワード"
+                app:passwordToggleEnabled="true">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/parentLoginPasswordEditText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textPassword" />
+            </com.google.android.material.textfield.TextInputLayout>
+        </LinearLayout>
+
+        <Button
+            android:id="@+id/parentLoginButton"
+            style="@style/Widget.Material3.Button"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:ems="10"
-            android:inputType="textPassword" />
-
-    </LinearLayout>
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="※Loginボタン長押しでBypass"
-        app:layout_constraintBottom_toTopOf="@+id/linearLayout2"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent" />
+            android:layout_marginTop="128dp"
+            android:layout_weight="1"
+            android:paddingHorizontal="48dp"
+            android:text="ログイン"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/inputContainer" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
 
     <LinearLayout
-        android:id="@+id/linearLayout2"
+        android:id="@+id/linearLayout3"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:orientation="horizontal"
@@ -52,19 +94,29 @@
         app:layout_constraintStart_toStartOf="parent">
 
         <Button
-            android:id="@+id/loginButton"
+            android:id="@+id/toRegisterButton"
+            style="@style/Widget.Material3.Button.TextButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginHorizontal="12dp"
+            android:layout_marginBottom="8dp"
             android:layout_weight="1"
-            android:text="LOGIN" />
+            android:padding="0dp"
+            android:paddingLeft="0dp"
+            android:paddingTop="0dp"
+            android:text="新規登録" />
 
         <Button
-            android:id="@+id/intentRegisterButton"
-            style="@style/Widget.Material3.Button.IconButton.Outlined"
+            android:id="@+id/toChildLoginButton"
+            style="@style/Widget.Material3.Button.TextButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginHorizontal="12dp"
+            android:layout_marginBottom="8dp"
             android:layout_weight="1"
-            android:text="Register" />
+            android:padding="0dp"
+            android:paddingLeft="0dp"
+            android:paddingTop="0dp"
+            android:text="子供ログイン" />
     </LinearLayout>
-
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_register.xml b/app/src/main/res/layout/activity_register.xml
index 4b255a7..845f18f 100644
--- a/app/src/main/res/layout/activity_register.xml
+++ b/app/src/main/res/layout/activity_register.xml
@@ -7,43 +7,85 @@
     android:layout_height="match_parent"
     tools:context=".RegisterActivity">
 
-    <LinearLayout
-        android:id="@+id/inputContainer"
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/linearLayout3"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <EditText
-            android:id="@+id/emailEditText"
+        <TextView
+            android:id="@+id/titleTextView"
+            android:layout_width="wrap_content"
+            android:layout_height="0dp"
+            android:layout_marginBottom="128dp"
+            android:text="KidShiftに新規登録"
+            android:textSize="32dp"
+            app:layout_constraintBottom_toTopOf="@+id/inputContainer"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+        <LinearLayout
+            android:id="@+id/inputContainer"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:ems="10"
-            android:inputType="textEmailAddress" />
+            android:layout_marginStart="24dp"
+            android:layout_marginEnd="24dp"
+            android:layout_marginBottom="128dp"
+            android:gravity="center_horizontal"
+            android:orientation="vertical"
+            android:weightSum="10"
+            app:layout_constraintBottom_toTopOf="@+id/parentRegisterButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent">
 
-        <EditText
-            android:id="@+id/passwordEditText"
-            android:layout_width="match_parent"
+            <com.google.android.material.textfield.TextInputLayout
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="8dp"
+                android:hint="メールアドレス">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/parentRegisterEmailEditText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textEmailAddress" />
+            </com.google.android.material.textfield.TextInputLayout>
+
+            <com.google.android.material.textfield.TextInputLayout
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:hint="パスワード"
+                app:passwordToggleEnabled="true">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/parentRegisterPasswordEditText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textPassword" />
+            </com.google.android.material.textfield.TextInputLayout>
+        </LinearLayout>
+
+        <Button
+            android:id="@+id/parentRegisterButton"
+            style="@style/Widget.Material3.Button"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:ems="10"
-            android:inputType="textPassword" />
-
-    </LinearLayout>
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="※Registerボタン長押しでBypass"
-        app:layout_constraintBottom_toTopOf="@+id/linearLayout2"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent" />
+            android:layout_marginTop="128dp"
+            android:layout_weight="1"
+            android:paddingHorizontal="48dp"
+            android:text="新規登録"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/inputContainer" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
 
     <LinearLayout
-        android:id="@+id/linearLayout2"
+        android:id="@+id/linearLayout3"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:orientation="horizontal"
@@ -52,19 +94,29 @@
         app:layout_constraintStart_toStartOf="parent">
 
         <Button
-            android:id="@+id/registerButton"
+            android:id="@+id/toLoginButton"
+            style="@style/Widget.Material3.Button.TextButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginHorizontal="12dp"
+            android:layout_marginBottom="8dp"
             android:layout_weight="1"
-            android:text="REGISTER" />
+            android:padding="0dp"
+            android:paddingLeft="0dp"
+            android:paddingTop="0dp"
+            android:text="ログイン" />
 
         <Button
-            android:id="@+id/intentLoginButton"
-            style="@style/Widget.Material3.Button.IconButton.Outlined"
+            android:id="@+id/toChildLoginButton"
+            style="@style/Widget.Material3.Button.TextButton"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginHorizontal="12dp"
+            android:layout_marginBottom="8dp"
             android:layout_weight="1"
-            android:text="Login" />
+            android:padding="0dp"
+            android:paddingLeft="0dp"
+            android:paddingTop="0dp"
+            android:text="子供ログイン" />
     </LinearLayout>
-
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file