diff --git a/src/layouts/MainLayout.vue b/src/layouts/MainLayout.vue
index e2faa42..566b4d3 100644
--- a/src/layouts/MainLayout.vue
+++ b/src/layouts/MainLayout.vue
@@ -18,15 +18,13 @@
 <script setup lang="ts">
 
 import useStore from 'src/store';
+import router from 'src/router';
 
 const store = useStore();
 
-if (store.state.account.isLoggedIn) {
-  // debug, show alert
-  alert('User is logged in');
-} else {
-  // debug, show alert
-  alert('User is not logged in');
+if (!store.state.account.isLoggedIn) {
+  // to /login
+  router.push('/login');
 }
 
 import { sendPing } from 'src/api/apiService';
diff --git a/src/pages/LoginPage.vue b/src/pages/LoginPage.vue
index 952575d..67b4965 100644
--- a/src/pages/LoginPage.vue
+++ b/src/pages/LoginPage.vue
@@ -20,6 +20,7 @@
 import { ref, computed } from 'vue';
 import useStore from 'src/store';
 import { loginWithCode } from 'src/api/apiService';
+import router from 'src/router';
 
 const loginCode = ref('');
 
@@ -32,6 +33,7 @@ const login = () => {
     loginWithCode(loginCode.value).then((accessToken) => {
       store.commit('account/setToken', accessToken);
       store.commit('account/setLoggedIn', true);
+      router.push('/');
     }).catch((error) => {
       alert('ログインエラー: ' + error);
     });
diff --git a/src/router/index.ts b/src/router/index.ts
index 5773787..ae13417 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -4,6 +4,7 @@ import {
   createRouter,
   createWebHashHistory,
   createWebHistory,
+  Router,
 } from 'vue-router';
 import { RootStateInterface } from '../store';
 
@@ -18,20 +19,18 @@ import routes from './routes';
  * with the Router instance.
  */
 
-export default route<RootStateInterface>(function (/* { store, ssrContext } */) {
-  const createHistory = process.env.SERVER
-    ? createMemoryHistory
-    : (process.env.VUE_ROUTER_MODE === 'history' ? createWebHistory : createWebHashHistory);
+const createHistory = process.env.SERVER
+  ? createMemoryHistory
+  : (process.env.VUE_ROUTER_MODE === 'history' ? createWebHistory : createWebHashHistory);
 
-  const Router = createRouter({
-    scrollBehavior: () => ({ left: 0, top: 0 }),
-    routes,
 
-    // Leave this as is and make changes in quasar.conf.js instead!
-    // quasar.conf.js -> build -> vueRouterMode
-    // quasar.conf.js -> build -> publicPath
-    history: createHistory(process.env.VUE_ROUTER_BASE),
-  });
-
-  return Router;
+const router: Router = createRouter({
+  scrollBehavior: () => ({ left: 0, top: 0 }),
+  routes,
+  // Leave this as is and make changes in quasar.conf.js instead!
+  // quasar.conf.js -> build -> vueRouterMode
+  // quasar.conf.js -> build -> publicPath
+  history: createHistory(process.env.VUE_ROUTER_BASE),
 });
+
+export default router;