diff --git a/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.blend b/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.blend
new file mode 100644
index 0000000000..5299a8f334
Binary files /dev/null and b/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.blend differ
diff --git a/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.glb b/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.glb
new file mode 100644
index 0000000000..a5890859fb
Binary files /dev/null and b/packages/frontend/assets/room/objects/wall-mirror/wall-mirror.glb differ
diff --git a/packages/frontend/src/utility/room/object-defs.ts b/packages/frontend/src/utility/room/object-defs.ts
index ff0a9488f6..9f9c29b7fa 100644
--- a/packages/frontend/src/utility/room/object-defs.ts
+++ b/packages/frontend/src/utility/room/object-defs.ts
@@ -71,6 +71,7 @@ import { tetrapod } from './objects/tetrapod.js';
 import { tv } from './objects/tv.js';
 import { wallCanvas } from './objects/wallCanvas.js';
 import { wallClock } from './objects/wallClock.js';
+import { wallMirror } from './objects/wallMirror.js';
 import { wallShelf } from './objects/wallShelf.js';
 import { woodRingFloorLamp } from './objects/woodRingFloorLamp.js';
 import { woodSoundAbsorbingPanel } from './objects/woodSoundAbsorbingPanel.js';
@@ -143,6 +144,7 @@ export const OBJECT_DEFS = [
 	tv,
 	wallCanvas,
 	wallClock,
+	wallMirror,
 	wallShelf,
 	woodRingFloorLamp,
 	woodSoundAbsorbingPanel,
diff --git a/packages/frontend/src/utility/room/objects/wallMirror.ts b/packages/frontend/src/utility/room/objects/wallMirror.ts
new file mode 100644
index 0000000000..b9513e8f5e
--- /dev/null
+++ b/packages/frontend/src/utility/room/objects/wallMirror.ts
@@ -0,0 +1,89 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import * as BABYLON from '@babylonjs/core';
+import { defineObject } from '../engine.js';
+
+export const wallMirror = defineObject({
+	id: 'wallMirror',
+	name: 'wallMirror',
+	options: {
+		schema: {
+			width: {
+				type: 'range',
+				label: 'Width',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			height: {
+				type: 'range',
+				label: 'Height',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			frameThickness: {
+				type: 'range',
+				label: 'Frame thickness',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			frameColor: {
+				type: 'color',
+				label: 'Frame color',
+			},
+		},
+		default: {
+			width: 0.2,
+			height: 0.2,
+			frameThickness: 0.1,
+			frameColor: [0.8, 0.28, 0.06],
+		},
+	},
+	placement: 'side',
+	createInstance: async ({ options, model }) => {
+		const frameMaterial = model.findMaterial('__X_FRAME__');
+		const frameMesh = model.findMesh('__X_FRAME__');
+		const mirrorMesh = model.findMesh('__X_MIRROR__');
+
+		const applySize = () => {
+			frameMesh.morphTargetManager!.getTargetByName('Width')!.influence = options.width;
+			frameMesh.morphTargetManager!.getTargetByName('Height')!.influence = options.height;
+			frameMesh.morphTargetManager!.getTargetByName('FrameThickness')!.influence = options.frameThickness;
+			mirrorMesh.morphTargetManager!.getTargetByName('Width')!.influence = options.width;
+			mirrorMesh.morphTargetManager!.getTargetByName('Height')!.influence = options.height;
+			model.updated();
+		};
+
+		applySize();
+
+		const applyFrameColor = () => {
+			frameMaterial.albedoColor = new BABYLON.Color3(...options.frameColor);
+		};
+
+		applyFrameColor();
+
+		return {
+			onInited: () => {
+
+			},
+			onOptionsUpdated: ([k, v]) => {
+				switch (k) {
+					case 'width':
+					case 'height':
+					case 'frameThickness':
+						applySize();
+						break;
+					case 'frameColor':
+						applyFrameColor();
+						break;
+				}
+			},
+			interactions: {},
+		};
+	},
+});