diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index a4d8c37..eb0e75c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".activity.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/jackall/devrealm/MainActivity.kt b/app/src/main/java/jackall/devrealm/MainActivity.kt
deleted file mode 100644
index 639f342..0000000
--- a/app/src/main/java/jackall/devrealm/MainActivity.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-package jackall.devrealm
-
-import android.support.v7.app.AppCompatActivity
-import android.os.Bundle
-
-class MainActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
-    }
-}
diff --git a/app/src/main/java/jackall/devrealm/activity/MainActivity.kt b/app/src/main/java/jackall/devrealm/activity/MainActivity.kt
new file mode 100644
index 0000000..62eca4d
--- /dev/null
+++ b/app/src/main/java/jackall/devrealm/activity/MainActivity.kt
@@ -0,0 +1,21 @@
+package jackall.devrealm.activity
+
+import android.arch.lifecycle.ViewModelProviders
+import android.databinding.DataBindingUtil
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import jackall.devrealm.R
+import jackall.devrealm.databinding.ActivityMainBinding
+import jackall.devrealm.viewmodel.MainViewModel
+
+class MainActivity : AppCompatActivity() {
+
+    val binding by lazy { DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main) }
+    val mainViewModel by lazy { ViewModelProviders.of(this, MainViewModel.Factory()).get(MainViewModel::class.java) }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding.mainViewModel = mainViewModel
+        lifecycle.addObserver(mainViewModel)
+    }
+}
diff --git a/app/src/main/java/jackall/devrealm/viewmodel/LifecycleViewModel.kt b/app/src/main/java/jackall/devrealm/viewmodel/LifecycleViewModel.kt
new file mode 100644
index 0000000..146aa21
--- /dev/null
+++ b/app/src/main/java/jackall/devrealm/viewmodel/LifecycleViewModel.kt
@@ -0,0 +1,35 @@
+package jackall.devrealm.viewmodel
+
+import android.arch.lifecycle.Lifecycle
+import android.arch.lifecycle.LifecycleObserver
+import android.arch.lifecycle.OnLifecycleEvent
+import android.arch.lifecycle.ViewModel
+
+/**
+ * Created by matsumoto_k on 2017/11/08.
+ */
+open class LifecycleViewModel : ViewModel(), LifecycleObserver {
+    @OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
+    open fun onCreate() {
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_START)
+    open fun onStart() {
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
+    open fun onResume() {
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
+    open fun onPause() {
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
+    open fun onStop() {
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
+    open fun onDestroy() {
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/jackall/devrealm/viewmodel/MainViewModel.kt b/app/src/main/java/jackall/devrealm/viewmodel/MainViewModel.kt
new file mode 100644
index 0000000..052c44c
--- /dev/null
+++ b/app/src/main/java/jackall/devrealm/viewmodel/MainViewModel.kt
@@ -0,0 +1,20 @@
+package jackall.devrealm.viewmodel
+
+import android.arch.lifecycle.ViewModel
+import android.arch.lifecycle.ViewModelProvider
+
+/**
+ * Created by matsumoto_k on 2017/11/08.
+ */
+class MainViewModel : LifecycleViewModel() {
+
+    override fun onCreate() {
+        super.onCreate()
+    }
+
+    class Factory() : ViewModelProvider.NewInstanceFactory() {
+        override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+            return MainViewModel() as T
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 2a47332..f73b06c 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,18 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context="jackall.devrealm.MainActivity">
+    tools:context="jackall.devrealm.activity.MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <data>
 
-</android.support.constraint.ConstraintLayout>
+        <variable
+            name="mainViewModel"
+            type="jackall.devrealm.viewmodel.MainViewModel" />
+    </data>
+
+    <android.support.constraint.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+
+    </android.support.constraint.ConstraintLayout>
+</layout>
\ No newline at end of file