diff --git a/packages/frontend-misskey-world-engine/src/PlayerContainer.ts b/packages/frontend-misskey-world-engine/src/PlayerContainer.ts
index d8aea3bd67..5eb291d92e 100644
--- a/packages/frontend-misskey-world-engine/src/PlayerContainer.ts
+++ b/packages/frontend-misskey-world-engine/src/PlayerContainer.ts
@@ -47,7 +47,8 @@ export class PlayerContainer {
 	public id: string;
 	private profile: PlayerProfile;
 	private root: BABYLON.TransformNode;
-	private modelRootContainerForAnim: BABYLON.TransformNode;
+	private subRootContainerForAnim: BABYLON.TransformNode;
+	private subRoot: BABYLON.TransformNode;
 	private modelRoot: BABYLON.TransformNode | null = null;
 	private sr: BABYLON.SnapshotRenderingHelper;
 	private scene: BABYLON.Scene;
@@ -63,8 +64,10 @@ export class PlayerContainer {
 
 		this.root = new BABYLON.TransformNode(`player:${this.id}`, params.scene);
 		this.root.rotationQuaternion = null;
-		this.modelRootContainerForAnim = new BABYLON.TransformNode(`player:${this.id}:modelRootContainerForAnim`, params.scene);
-		this.modelRootContainerForAnim.parent = this.root;
+		this.subRootContainerForAnim = new BABYLON.TransformNode(`player:${this.id}:subRootContainerForAnim`, params.scene);
+		this.subRootContainerForAnim.parent = this.root;
+		this.subRoot = new BABYLON.TransformNode(`player:${this.id}:subRoot`, params.scene);
+		this.subRoot.parent = this.subRootContainerForAnim;
 		if (params.state) this.applyState(params.state, true);
 	}
 
@@ -77,7 +80,7 @@ export class PlayerContainer {
 
 		// meshじゃなくtransform nodeにしてパフォーマンス向上
 		this.modelRoot = new BABYLON.TransformNode('__root__', this.scene);
-		this.modelRoot.parent = this.modelRootContainerForAnim;
+		this.modelRoot.parent = this.subRoot;
 		this.modelRoot.scaling.x = -1;
 		this.modelRoot.scaling = this.modelRoot.scaling.scale(WORLD_SCALE);// cmをmに
 
@@ -171,11 +174,11 @@ export class PlayerContainer {
 			{ frame: 90, value: cm(2) },
 			{ frame: 120, value: cm(0) },
 		]);
-		this.modelRootContainerForAnim.animations = [anim];
+		this.subRootContainerForAnim.animations = [anim];
 		this.animationObserver = this.scene.onAfterAnimationsObservable.add(() => {
-			this.sr.updateMesh(this.modelRootContainerForAnim.getChildMeshes(), false);
+			this.sr.updateMesh(this.subRootContainerForAnim.getChildMeshes(), false);
 		});
-		this.scene.beginAnimation(this.modelRootContainerForAnim, 0, 120, true);
+		this.scene.beginAnimation(this.subRootContainerForAnim, 0, 120, true);
 	}
 
 	private async loadAccessory(args: {
@@ -205,6 +208,8 @@ export class PlayerContainer {
 
 		await container.load();
 
+		container.root.parent = this.subRoot;
+
 		return container;
 	}
 
diff --git a/packages/frontend-misskey-world-engine/src/avatars/accessories/mug.ts b/packages/frontend-misskey-world-engine/src/avatars/accessories/mug.ts
index 99b86df18d..4b91e0fe7d 100644
--- a/packages/frontend-misskey-world-engine/src/avatars/accessories/mug.ts
+++ b/packages/frontend-misskey-world-engine/src/avatars/accessories/mug.ts
@@ -7,15 +7,38 @@ import * as BABYLON from '@babylonjs/core';
 import { cm } from 'misskey-world/src/utility.js';
 import { mug_schema } from 'misskey-world/src/room/objects/mug.schema.js';
 import { defineAccessory } from '../accessory.js';
-import { yuge } from '../utility.js';
 
 export const mug = defineAccessory(mug_schema, {
 	createInstance: ({ scene, root, sr }) => {
-		const yugeDispose = yuge(scene, root, new BABYLON.Vector3(0, cm(5), 0), sr);
+		const emitter = new BABYLON.TransformNode('emitter', scene);
+		emitter.parent = root;
+		emitter.position = new BABYLON.Vector3(0, cm(5), 0);
+		const ps = new BABYLON.ParticleSystem('steamParticleSystem', 8, scene);
+		ps.particleTexture = new BABYLON.Texture('/client-assets/world/avatar-accessories/mug/steam.png');
+		ps.emitter = emitter;
+		ps.minEmitBox = new BABYLON.Vector3(cm(-1), 0, cm(-1));
+		ps.maxEmitBox = new BABYLON.Vector3(cm(1), 0, cm(1));
+		ps.minEmitPower = cm(10);
+		ps.maxEmitPower = cm(12);
+		ps.minLifeTime = 2;
+		ps.maxLifeTime = 3;
+		ps.addSizeGradient(0, cm(10), cm(12));
+		ps.addSizeGradient(1, cm(18), cm(20));
+		ps.direction1 = new BABYLON.Vector3(-0.3, 1, 0.3);
+		ps.direction2 = new BABYLON.Vector3(0.3, 1, -0.3);
+		ps.emitRate = 0.5;
+		ps.blendMode = BABYLON.ParticleSystem.BLENDMODE_ADD;
+		ps.color1 = new BABYLON.Color4(1, 1, 1, 0.3);
+		ps.color2 = new BABYLON.Color4(1, 1, 1, 0.2);
+		ps.colorDead = new BABYLON.Color4(1, 1, 1, 0);
+		ps.preWarmCycles = Math.random() * 1000;
+		ps.start();
+		sr.fixParticleSystem(ps);
 
 		return {
 			dispose: () => {
-				yugeDispose?.();
+				ps.stop();
+				emitter.dispose();
 			},
 		};
 	},
diff --git a/packages/frontend-misskey-world-engine/src/avatars/accessory.ts b/packages/frontend-misskey-world-engine/src/avatars/accessory.ts
index 0a4fa569cb..044f36120f 100644
--- a/packages/frontend-misskey-world-engine/src/avatars/accessory.ts
+++ b/packages/frontend-misskey-world-engine/src/avatars/accessory.ts
@@ -39,6 +39,6 @@ export function defineAccessorySchema<const OpSc extends AvatarAccessoryOptionsS
 	return def;
 }
 
-export function defineAccessory<const Schema extends AccessorySchemaDef<any>>(schema: Schema, def: Pick<AccessoryDef<Schema>, 'path' | 'createInstance'>): AccessoryDef<Schema> {
+export function defineAccessory<const Schema extends AccessorySchemaDef<any>>(schema: Schema, def: Pick<AvatarAccessoryDef<Schema>, 'path' | 'createInstance'>): AvatarAccessoryDef<Schema> {
 	return { ...schema, ...def };
 }
diff --git a/packages/frontend/assets/world/avatar-accessories/mug/steam.png b/packages/frontend/assets/world/avatar-accessories/mug/steam.png
new file mode 100644
index 0000000000..d088cd71cf
Binary files /dev/null and b/packages/frontend/assets/world/avatar-accessories/mug/steam.png differ