diff --git a/.idea/misc.xml b/.idea/misc.xml
index 283b1e5..5489fee 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt b/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt
index 6a76cec..b5b12df 100644
--- a/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt
+++ b/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt
@@ -11,9 +11,7 @@
 import jackall.moncalc.R
 import jackall.moncalc.common.PreferenceKeys
 import jackall.moncalc.common.PreferenceNames
-import jackall.moncalc.db.FruitRealmHelper
-import jackall.moncalc.db.GradeRealmHelper
-import jackall.moncalc.db.TempleRealmHelper
+import jackall.moncalc.db.MonstDataRealmHelper
 import jackall.moncalc.service.MainService
 import jackall.moncalc.utils.MySharedPref
 import jackall.moncalc.vo.MonstData
@@ -24,9 +22,7 @@
 class MainActivity : AppCompatActivity() {
 
     val mySharedPref by lazy { MySharedPref(this, PreferenceNames.CONFIG) }
-    val fruitRealmHelper by lazy { FruitRealmHelper() }
-    val templeRealmHelper by lazy { TempleRealmHelper() }
-    val gradeRealmHelper by lazy { GradeRealmHelper() }
+    val monstDataRealmHelper = MonstDataRealmHelper()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -39,9 +35,9 @@
             val jsonReader = JsonReader(InputStreamReader(inputStream))
             val monstData = Gson().fromJson<MonstData>(jsonReader, MonstData::class.java)
 
-            fruitRealmHelper.update(monstData.fruit)
-            templeRealmHelper.update(monstData.temple)
-            gradeRealmHelper.update(monstData.grade)
+            monstDataRealmHelper.update(monstData.fruit)
+            monstDataRealmHelper.update(monstData.temple)
+            monstDataRealmHelper.update(monstData.grade)
 
             mySharedPref.putValue(PreferenceKeys.QUESTDATAVERSION, Int::class.java, Const.questDataVersion)
 
@@ -61,8 +57,7 @@
 
     override fun onDestroy() {
         super.onDestroy()
-        fruitRealmHelper.close()
-        templeRealmHelper.close()
+        monstDataRealmHelper.close()
     }
 
     private fun isMainServiceRunning(): Boolean {
diff --git a/app/src/main/kotlin/jackall/moncalc/db/MonstDataRealmHelper.kt b/app/src/main/kotlin/jackall/moncalc/db/MonstDataRealmHelper.kt
new file mode 100644
index 0000000..c8ec1af
--- /dev/null
+++ b/app/src/main/kotlin/jackall/moncalc/db/MonstDataRealmHelper.kt
@@ -0,0 +1,60 @@
+package jackall.moncalc.db
+
+import io.realm.Realm
+import io.realm.RealmModel
+import io.realm.RealmObject
+import io.realm.RealmResults
+import jackall.moncalc.vo.Fruit
+import jackall.moncalc.vo.Grade
+import jackall.moncalc.vo.Temple
+
+/**
+ * Created by matsumoto_k on 2017/11/03.
+ */
+/**
+ * fruit, temple, gradeのデータを管理するクラス
+ */
+class MonstDataRealmHelper {
+    val templeRealmHelper = TempleRealmHelper()
+    val fruitRealmHelper = FruitRealmHelper()
+    val gradeRealmHelper = GradeRealmHelper()
+    val realm by lazy { Realm.getInstance(RealmConfig().config) }
+
+    fun update(realmObject: List<RealmObject>) {
+        realm.executeTransaction {
+            realm.copyToRealmOrUpdate(realmObject)
+        }
+    }
+
+    fun <T : RealmModel> findAll(realmModel: Class<T>): RealmResults<T> {
+        return realm.where(realmModel).findAll()
+    }
+
+    fun <T : RealmModel> findNames(realmModel: Class<T>): List<String> {
+        val results = ArrayList<String>()
+        when (realmModel) {
+            Temple::class.java -> {
+                realm.where(Temple::class.java).findAll().forEach {
+                    results.add(it.name)
+                }
+            }
+            Fruit::class.java -> {
+                realm.where(Fruit::class.java).findAll().forEach {
+                    results.add(it.name)
+                }
+            }
+            Grade::class.java -> {
+                realm.where(Grade::class.java).findAll().forEach {
+                    results.add(it.name)
+                }
+            }
+        }
+        return results
+    }
+
+    fun close() {
+        templeRealmHelper.close()
+        fruitRealmHelper.close()
+        gradeRealmHelper.close()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/jackall/moncalc/service/MainService.kt b/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
index 760157d..bed5f86 100644
--- a/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
+++ b/app/src/main/kotlin/jackall/moncalc/service/MainService.kt
@@ -17,11 +17,12 @@
 import jackall.moncalc.common.PreferenceKeys
 import jackall.moncalc.common.PreferenceNames
 import jackall.moncalc.databinding.RegistOverlayBinding
-import jackall.moncalc.db.FruitRealmHelper
-import jackall.moncalc.db.GradeRealmHelper
-import jackall.moncalc.db.TempleRealmHelper
+import jackall.moncalc.db.MonstDataRealmHelper
 import jackall.moncalc.utils.MySharedPref
 import jackall.moncalc.viewmodel.OverlayRegistViewModel
+import jackall.moncalc.vo.Fruit
+import jackall.moncalc.vo.Grade
+import jackall.moncalc.vo.Temple
 
 
 /**
@@ -45,9 +46,7 @@
     }
     var isLongClick: Boolean = false
 
-    val templeRealmHelper by lazy { TempleRealmHelper() }
-    val fruitRealmHelper by lazy { FruitRealmHelper() }
-    val gradeRealmHelper by lazy { GradeRealmHelper() }
+    val monstDataRealmHelper = MonstDataRealmHelper()
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         val notificationBuilder = NotificationCompat.Builder(this, Const.serviceChannelId)
@@ -114,9 +113,9 @@
 
         registBinding.registViewModel = OverlayRegistViewModel(this as MainServiceContract)
 
-        val templeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, templeRealmHelper.findNames())
-        val fruitSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, fruitRealmHelper.findNames())
-        val gradeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, gradeRealmHelper.findNames())
+        val templeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Temple::class.java))
+        val fruitSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Fruit::class.java))
+        val gradeSpinnerAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, monstDataRealmHelper.findNames(Grade::class.java))
         registBinding.templeSpinner.adapter = templeSpinnerAdapter
         registBinding.fruitSpinner.adapter = fruitSpinnerAdapter
         registBinding.gradeSpinner.adapter = gradeSpinnerAdapter
diff --git a/app/src/main/kotlin/jackall/moncalc/viewmodel/OverlayRegistViewModel.kt b/app/src/main/kotlin/jackall/moncalc/viewmodel/OverlayRegistViewModel.kt
index 5abeedd..d4ebbaa 100644
--- a/app/src/main/kotlin/jackall/moncalc/viewmodel/OverlayRegistViewModel.kt
+++ b/app/src/main/kotlin/jackall/moncalc/viewmodel/OverlayRegistViewModel.kt
@@ -3,15 +3,13 @@
 import android.databinding.BaseObservable
 import android.view.View
 import jackall.moncalc.Contract.MainServiceContract
-import jackall.moncalc.db.FruitRealmHelper
-import jackall.moncalc.db.TempleRealmHelper
+import jackall.moncalc.db.MonstDataRealmHelper
 
 /**
  * Created by matsumoto_k on 2017/11/01.
  */
 class OverlayRegistViewModel(val mainServiceContract: MainServiceContract) : BaseObservable() {
-    private val templeRealmHelper = TempleRealmHelper()
-    private val fruitRealmHelper = FruitRealmHelper()
+    private val monstDataRealmHelper = MonstDataRealmHelper()
     fun onClickMin(view: View) {
         mainServiceContract.showMoveView()
     }
@@ -21,7 +19,6 @@
     }
 
     fun realmInstanceClose() {
-        templeRealmHelper.close()
-        fruitRealmHelper.close()
+        monstDataRealmHelper.close()
     }
 }
\ No newline at end of file
diff --git a/app/src/main/kotlin/jackall/moncalc/vo/MonstData.kt b/app/src/main/kotlin/jackall/moncalc/vo/MonstData.kt
index baabfa0..d7e8a0d 100644
--- a/app/src/main/kotlin/jackall/moncalc/vo/MonstData.kt
+++ b/app/src/main/kotlin/jackall/moncalc/vo/MonstData.kt
@@ -1,10 +1,13 @@
 package jackall.moncalc.vo
 
+import io.realm.RealmList
+import io.realm.RealmObject
+
 /**
  * Created by matsumoto_k on 2017/11/03.
  */
-data class MonstData(
-        val fruit: List<Fruit>,
-        val temple: List<Temple>,
-        val grade: List<Grade>
-)
\ No newline at end of file
+open class MonstData(
+        open var fruit: RealmList<Fruit> = RealmList<Fruit>(),
+        open var temple: RealmList<Temple> = RealmList<Temple>(),
+        open var grade: RealmList<Grade> = RealmList<Grade>()
+) : RealmObject()
\ No newline at end of file