diff --git a/packages/frontend/src/pages/room.vue b/packages/frontend/src/pages/room.vue
index 802ada2204..38614cc002 100644
--- a/packages/frontend/src/pages/room.vue
+++ b/packages/frontend/src/pages/room.vue
@@ -204,8 +204,70 @@ function onWheel(ev: WheelEvent) {
 	}
 }
 
-const data = localStorage.getItem('roomData') != null ? JSON.parse(localStorage.getItem('roomData')!) : {
-	roomType: 'default',
+const data = localStorage.getItem('roomData') != null ? { ...JSON.parse(localStorage.getItem('roomData')!), ...{
+	heya: {
+		type: 'simple',
+		options: {
+			dimension: [300, 300],
+			window: 'demado',
+			wallN: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallE: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallS: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallW: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			flooring: {
+				material: 'wood',
+				color: [0.9, 0.9, 0.9],
+			},
+			ceiling: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+		},
+	},
+} } : {
+	heya: {
+		type: 'simple',
+		options: {
+			dimension: [300, 300],
+			window: 'demado',
+			wallN: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallE: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallS: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			wallW: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+			flooring: {
+				material: 'wood',
+				color: [0.9, 0.9, 0.9],
+			},
+			ceiling: {
+				material: null,
+				color: [0.9, 0.9, 0.9],
+			},
+		},
+	},
 	installedObjects: [{
 		id: 'a',
 		type: 'cardboardBox',
diff --git a/packages/frontend/src/utility/room/engine.ts b/packages/frontend/src/utility/room/engine.ts
index 49f9c720b2..2e68aae1a3 100644
--- a/packages/frontend/src/utility/room/engine.ts
+++ b/packages/frontend/src/utility/room/engine.ts
@@ -56,7 +56,7 @@ type SimpleHeyaWallBase = {
 type Heya = {
 	type: 'simple';
 	options: {
-		size: [number, number];
+		dimension: [number, number];
 		window: 'none' | 'kosidakamado' | 'demado' | 'hakidasimado';
 		wallN: SimpleHeyaWallBase;
 		wallE: SimpleHeyaWallBase;
@@ -542,7 +542,7 @@ export class RoomEngine {
 	}
 
 	public async init() {
-		await this.loadRoomModel(this.roomState.roomType);
+		await this.loadRoomModel(this.roomState.heya.type);
 		await this.loadEnvModel();
 		await Promise.all(this.roomState.installedObjects.map(o => this.loadObject({
 			id: o.id,