diff --git a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
index a70a8c65..25ca72b8 100644
--- a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
+++ b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
@@ -271,7 +271,11 @@ export default function PlacementShapeSetting({ id, pos = { x: 50, y: 180 }, pla
             <tbody>
               <tr>
                 <th>{getMessage('modal.placement.initial.setting.plan.drawing')}</th>
-                <td>{getMessage('modal.placement.initial.setting.plan.drawing.size.stuff')}</td>
+                <td>
+                  {getMessage('modal.placement.initial.setting.plan.drawing.size.stuff')}
+                  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+                  {getMessage('modal.placement.initial.setting.plan.drawing.only.number')}
+                </td>
               </tr>
               <tr>
                 <th>
diff --git a/src/locales/ja.json b/src/locales/ja.json
index d6670702..0e290001 100644
--- a/src/locales/ja.json
+++ b/src/locales/ja.json
@@ -1034,5 +1034,6 @@
   "roof.exceed.count": "屋根材は4つまで選択可能です。",
   "outerLine.property.fix": "外壁線の属性設定 を完了しますか？",
   "outerLine.property.close": "外壁線の属性設定 を終了しますか？",
-  "want.to.complete.auxiliary.creation": "보補助線の作成を完了しますか?"
+  "want.to.complete.auxiliary.creation": "보補助線の作成を完了しますか?",
+  "modal.placement.initial.setting.plan.drawing.only.number": "(※数字は[半角]入力のみ可能です。)"
 }
diff --git a/src/locales/ko.json b/src/locales/ko.json
index 4c051305..013050d4 100644
--- a/src/locales/ko.json
+++ b/src/locales/ko.json
@@ -1034,5 +1034,6 @@
   "roof.exceed.count": "지붕재는 4개까지 선택 가능합니다.",
   "outerLine.property.fix": "외벽선 속성 설정을 완료하시겠습니까?",
   "outerLine.property.close": "외벽선 속성 설정을 종료하시겠습니까?",
-  "want.to.complete.auxiliary.creation": "보조선 작성을 완료하시겠습니까?"
+  "want.to.complete.auxiliary.creation": "보조선 작성을 완료하시겠습니까?",
+  "modal.placement.initial.setting.plan.drawing.only.number": "(※ 숫자는 [반각]입력만 가능합니다.)"
 }