diff --git a/app/build.gradle b/app/build.gradle
index 2d4e1ce..a44c85c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,6 +6,8 @@
 
 apply plugin: 'kotlin-kapt'
 
+apply plugin: 'realm-android'
+
 android {
     compileSdkVersion 26
     defaultConfig {
diff --git a/app/src/main/kotlin/jackall/overlaymulticounter/vo/Counter.kt b/app/src/main/kotlin/jackall/overlaymulticounter/vo/Counter.kt
new file mode 100644
index 0000000..ea2d6ea
--- /dev/null
+++ b/app/src/main/kotlin/jackall/overlaymulticounter/vo/Counter.kt
@@ -0,0 +1,13 @@
+package jackall.overlaymulticounter.vo
+
+import io.realm.RealmObject
+import java.util.*
+
+/**
+ * Created by matsumoto_k on 2017/11/08.
+ */
+open class Counter(
+        open var title: String = "",
+        open var count: Int = 0,
+        open var createAt: Date = Date()
+) : RealmObject()
\ No newline at end of file