diff --git a/packages/frontend/assets/room/objects/debug-hipoly/debug-hipoly.glb b/packages/frontend/assets/room/objects/debug-hipoly/debug-hipoly.glb
new file mode 100644
index 0000000000..9ccfe560e0
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diff --git a/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.blend b/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.blend
new file mode 100644
index 0000000000..312675f316
Binary files /dev/null and b/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.blend differ
diff --git a/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.glb b/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.glb
new file mode 100644
index 0000000000..6961f16130
Binary files /dev/null and b/packages/frontend/assets/room/objects/laptop-pc/laptop-pc.glb differ
diff --git a/packages/frontend/assets/room/objects/laptop-pc/textures/keyboard.png b/packages/frontend/assets/room/objects/laptop-pc/textures/keyboard.png
new file mode 100644
index 0000000000..8cee6c3087
Binary files /dev/null and b/packages/frontend/assets/room/objects/laptop-pc/textures/keyboard.png differ
diff --git a/packages/frontend/src/utility/room/object-defs.ts b/packages/frontend/src/utility/room/object-defs.ts
index de45460f2d..85be80d0d6 100644
--- a/packages/frontend/src/utility/room/object-defs.ts
+++ b/packages/frontend/src/utility/room/object-defs.ts
@@ -20,6 +20,7 @@ import { ceilingFanLight } from './objects/ceilingFanLight.js';
 import { chair } from './objects/chair.js';
 import { colorBox } from './objects/colorBox.js';
 import { cupNoodle } from './objects/cupNoodle.js';
+import { debugHipoly } from './objects/debugHipoly.js';
 import { desk } from './objects/desk.js';
 import { ductTape } from './objects/ductTape.js';
 import { emptyBento } from './objects/emptyBento.js';
@@ -28,6 +29,7 @@ import { envelope } from './objects/envelope.js';
 import { facialTissue } from './objects/facialTissue.js';
 import { hangingTShirt } from './objects/hangingTShirt.js';
 import { keyboard } from './objects/keyboard.js';
+import { laptopPc } from './objects/laptopPc.js';
 import { lavaLamp } from './objects/lavaLamp.js';
 import { letterCase } from './objects/letterCase.js';
 import { milk } from './objects/milk.js';
@@ -87,6 +89,7 @@ export const OBJECT_DEFS = [
 	facialTissue,
 	hangingTShirt,
 	keyboard,
+	laptopPc,
 	lavaLamp,
 	letterCase,
 	milk,
@@ -119,6 +122,7 @@ export const OBJECT_DEFS = [
 	wallClock,
 	wallShelf,
 	woodSoundAbsorbingPanel,
+	debugHipoly,
 ];
 
 export function getObjectDef(type: string): typeof OBJECT_DEFS[number] {
diff --git a/packages/frontend/src/utility/room/objects/debugHipoly.ts b/packages/frontend/src/utility/room/objects/debugHipoly.ts
new file mode 100644
index 0000000000..2df52ba401
--- /dev/null
+++ b/packages/frontend/src/utility/room/objects/debugHipoly.ts
@@ -0,0 +1,21 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { defineObject } from '../engine.js';
+
+export const debugHipoly = defineObject({
+	id: 'debugHipoly',
+	name: 'debugHipoly',
+	options: {
+		schema: {},
+		default: {},
+	},
+	placement: 'top',
+	createInstance: () => {
+		return {
+			interactions: {},
+		};
+	},
+});
diff --git a/packages/frontend/src/utility/room/objects/laptopPc.ts b/packages/frontend/src/utility/room/objects/laptopPc.ts
new file mode 100644
index 0000000000..5f883e9212
--- /dev/null
+++ b/packages/frontend/src/utility/room/objects/laptopPc.ts
@@ -0,0 +1,127 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import * as BABYLON from '@babylonjs/core';
+import { defineObject } from '../engine.js';
+import { createPlaneUvMapper } from '../utility.js';
+
+export const laptopPc = defineObject({
+	id: 'laptopPc',
+	name: 'Laptop PC',
+	options: {
+		schema: {
+			bodyColor: {
+				type: 'color',
+				label: 'Body color',
+			},
+			bezelColor: {
+				type: 'color',
+				label: 'Bezel color',
+			},
+			screenBrightness: {
+				type: 'range',
+				label: 'Screen brightness',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			customPicture: {
+				type: 'image',
+				label: 'Custom picture',
+			},
+			fit: {
+				type: 'enum',
+				label: 'Custom picture fit',
+				enum: ['cover', 'contain', 'stretch'],
+			},
+		},
+		default: {
+			bodyColor: [1, 1, 1],
+			bezelColor: [0, 0, 0],
+			screenBrightness: 0.35,
+			customPicture: null,
+			fit: 'cover',
+		},
+	},
+	placement: 'top',
+	createInstance: ({ room, options, findMesh, findMaterial }) => {
+		const screenMesh = findMesh('__X_SCREEN__');
+
+		const bodyMaterial = findMaterial('__X_BODY__');
+		const bezelMaterial = findMaterial('__X_BEZEL__');
+		const screenMaterial = findMaterial('__X_SCREEN__');
+
+		screenMaterial.ambientColor = new BABYLON.Color3(0, 0, 0);
+		screenMaterial.albedoColor = new BABYLON.Color3(0, 0, 0);
+
+		const updateUv = createPlaneUvMapper(screenMesh);
+
+		const applyFit = () => {
+			const tex = screenMaterial.emissiveTexture;
+			if (tex == null) return;
+
+			const srcAspect = tex.getSize().width / tex.getSize().height;
+			const targetAspect = 31 / 19;
+
+			updateUv(srcAspect, targetAspect, options.fit);
+		};
+
+		applyFit();
+
+		const applyCustomPicture = () => {
+			if (options.customPicture != null) {
+				const tex = new BABYLON.Texture(options.customPicture, room.scene, false, false);
+				tex.wrapU = BABYLON.Texture.MIRROR_ADDRESSMODE;
+				tex.wrapV = BABYLON.Texture.MIRROR_ADDRESSMODE;
+				tex.level = 0.5;
+
+				screenMaterial.emissiveTexture = tex;
+
+				applyFit();
+
+				tex.onLoadObservable.addOnce(() => {
+					applyFit();
+				});
+			} else {
+				screenMaterial.emissiveTexture = null;
+			}
+		};
+
+		applyCustomPicture();
+
+		const applyScreenBrightness = () => {
+			const b = options.screenBrightness;
+			screenMaterial.emissiveColor = new BABYLON.Color3(b, b, b);
+		};
+
+		applyScreenBrightness();
+
+		const applyBodyColor = () => {
+			const [r, g, b] = options.bodyColor;
+			bodyMaterial.albedoColor = new BABYLON.Color3(r, g, b);
+		};
+
+		const applyBezelColor = () => {
+			const [r, g, b] = options.bezelColor;
+			bezelMaterial.albedoColor = new BABYLON.Color3(r, g, b);
+		};
+
+		applyBodyColor();
+		applyBezelColor();
+
+		return {
+			onOptionsUpdated: ([k, v]) => {
+				switch (k) {
+					case 'bodyColor': applyBodyColor(); break;
+					case 'bezelColor': applyBezelColor(); break;
+					case 'screenBrightness': applyScreenBrightness(); break;
+					case 'customPicture': applyCustomPicture(); break;
+					case 'fit': applyFit(); break;
+				}
+			},
+			interactions: {},
+		};
+	},
+});