diff --git a/app/Http/Controllers/TodoController.php b/app/Http/Controllers/TodoController.php
index 93aa899..c8e55df 100644
--- a/app/Http/Controllers/TodoController.php
+++ b/app/Http/Controllers/TodoController.php
@@ -13,6 +13,7 @@
      */
     public function index()
     {
+        return "this is index";
         //
     }
 
diff --git a/resources/views/welcome.blade.php b/resources/views/welcome.blade.php
index a951064..c03ce81 100644
--- a/resources/views/welcome.blade.php
+++ b/resources/views/welcome.blade.php
@@ -67,7 +67,8 @@
 {{-- 単に、スペースをあけるためのspan --}}
 <span class="mx-2"></span>
 <a class="bg-orange-100 hover:bg-yellow-200 text-gray-600 p-2 px-4 rounded-lg text-lg" href="/register">新規登録</a>
-
+<span class="mx-2"></span>
+<a class="bg-blue-200 hover:bg-yellow-200 text-black p-2 px-3 rounded-lg text-lg font-bold" href="{{route('todo.index')}}">Todo (要ログイン)</a>
                         </div>
                     </main>
 
diff --git a/routes/web.php b/routes/web.php
index 74bb7ca..9fd1629 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -1,6 +1,7 @@
 <?php
 
 use App\Http\Controllers\ProfileController;
+use App\Http\Controllers\TodoController;
 use Illuminate\Support\Facades\Route;
 
 Route::get('/', function () {
@@ -15,6 +16,8 @@
     Route::get('/profile', [ProfileController::class, 'edit'])->name('profile.edit');
     Route::patch('/profile', [ProfileController::class, 'update'])->name('profile.update');
     Route::delete('/profile', [ProfileController::class, 'destroy'])->name('profile.destroy');
+
+    Route::resource('todo', TodoController::class); // Todo関係を追加
 });
 
 require __DIR__.'/auth.php';