diff --git a/model/src/main/java/one/nem/kidshift/model/childModel.java b/model/src/main/java/one/nem/kidshift/model/childModel.java
index 897c2c1..306446f 100644
--- a/model/src/main/java/one/nem/kidshift/model/childModel.java
+++ b/model/src/main/java/one/nem/kidshift/model/childModel.java
@@ -1,5 +1,6 @@
 package one.nem.kidshift.model;
 
+// TODO: parent, childを共通クラスから継承させる
 public class childModel {
     String internalId;
     String displayName;