diff --git a/src/locales/ja.json b/src/locales/ja.json
index 54276e0d..52ebfeba 100644
--- a/src/locales/ja.json
+++ b/src/locales/ja.json
@@ -269,10 +269,10 @@
   "modal.canvas.setting.wallline.properties.setting.info": "※属性を変更する外壁線を選択し、軒で設定またはケラバで設定\nボタンをクリックして設定値を適用してください。\n",
   "modal.canvas.setting.wallline.properties.setting.eaves": "軒で設定",
   "modal.canvas.setting.wallline.properties.setting.edge": "ケラバに設定",
-  "modal.canvas.setting.wallline.properties.setting.ridge": "",
-  "modal.canvas.setting.roofline.properties.setting": "",
-  "modal.canvas.setting.roofline.properties.setting.info": "",
-  "modal.canvas.setting.roofline.properties.setting.not.setting": "",
+  "modal.canvas.setting.wallline.properties.setting.ridge": "용마루로 설정(JA)",
+  "modal.canvas.setting.roofline.properties.setting": "지붕선 속성 설정(JA)",
+  "modal.canvas.setting.roofline.properties.setting.info": "※ 속성을 변경할 지붕선을 선택하고 처마로 설정 또는 케라바로 설정\n    버튼을 클릭하여 설정값을 적용하십시오.\n(JA)",
+  "modal.canvas.setting.roofline.properties.setting.not.setting": "설정하지 않은 라인이 존재합니다.(JA)",
   "modal.eaves.gable.edit": "軒/ケラバ変更",
   "modal.eaves.gable.edit.basic": "通常",
   "modal.eaves.gable.edit.wall.merge.info": "下屋などの壁に面する屋根を作成します。",