diff --git a/src/components/Main.vue b/src/components/Main.vue
new file mode 100644
index 00000000..97459365
--- /dev/null
+++ b/src/components/Main.vue
@@ -0,0 +1,20 @@
+<template>
+  <div id="main">
+    <!-- 仮置き -->
+    <p>Main View</p>
+  </div>
+</template>
+
+<script lang="ts">
+import { Component, Vue } from 'vue-property-decorator'
+
+@Component({
+  components: {
+  }
+})
+export default class Main extends Vue {
+}
+</script>
+
+<style lang="postcss">
+</style>
\ No newline at end of file
diff --git a/src/main/Auth.ts b/src/main/Auth.ts
index cdfc362c..ef305b7e 100644
--- a/src/main/Auth.ts
+++ b/src/main/Auth.ts
@@ -75,7 +75,7 @@ export default class Auth {
                     accessToken: tokenData.accessToken,
                     color: undefined
                   }
-                  db.insert(docs, function(err, newDocs) {
+                  db.insert(docs, function (err, newDocs) {
                     if (err) {
                       event.sender.send(`error`, {
                         id: "ERROR_YOU_TRY_ANOTHER_ACCOUNT",
diff --git a/src/views/App.vue b/src/views/App.vue
index ee00cf02..e1665bb5 100644
--- a/src/views/App.vue
+++ b/src/views/App.vue
@@ -1,21 +1,26 @@
 <template>
   <div id="app" :style="styles">
-    <Welcome/>
+    <Welcome v-if="isStartup"/>
+    <Main v-else/>
   </div>
 </template>
 
 <script lang="ts">
 import { ipcRenderer } from 'electron'
 import { Component, Vue } from 'vue-property-decorator'
+
+import Main from '@/components/Main.vue'
 import Welcome from '@/components/Welcome.vue'
 
 @Component({
   components: {
+    Main,
     Welcome,
   },
 })
 export default class App extends Vue {
   public isDarkMode!: boolean
+  public isStartup!: boolean
   public fontSize!: string
 
   public get styles(): { [key: string]: string } {
@@ -28,11 +33,16 @@ export default class App extends Vue {
 
   created() {
     this.isDarkMode = ipcRenderer.sendSync('dark-theme')
+    this.isStartup = true // TODO: ipcで初回起動かのboolean値を取得する
     this.fontSize = '16px'
   }
 
   mounted() {
     ipcRenderer.on('change-color-theme', () => this.isDarkMode = ipcRenderer.sendSync('dark-theme'))
+    // TODO: アカウントか公開TLの追加を確認する。初回起動時のみ
+    if (this.isStartup) {
+      //ipcRenderer.once('add-account-or-timeline', () => this.isStartup = false)
+    }
   }
 
   beforeDestroy() {