diff --git a/locales/index.d.ts b/locales/index.d.ts
index 885b316634..ed9e9f9bb9 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -9803,7 +9803,7 @@ export interface Locale extends ILocale {
              */
             "kokushi": string;
             /**
-             * 国士無双13面待ち
+             * 国士無双十三面待
              */
             "kokushi-13": string;
             /**
@@ -9811,7 +9811,7 @@ export interface Locale extends ILocale {
              */
             "suanko": string;
             /**
-             * 四暗刻単騎待ち
+             * 四暗刻単騎待
              */
             "suanko-tanki": string;
             /**
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 8935bc9d7a..87e7c7566c 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -2610,9 +2610,9 @@ _mahjong:
     "ryampeko": "ニ盃口"
     "chinitsu": "清一色"
     "kokushi": "国士無双"
-    "kokushi-13": "国士無双13面待ち"
+    "kokushi-13": "国士無双十三面待"
     "suanko": "四暗刻"
-    "suanko-tanki": "四暗刻単騎待ち"
+    "suanko-tanki": "四暗刻単騎待"
     "daisangen": "大三元"
     "tsuiso": "字一色"
     "shosushi": "小四喜"
diff --git a/packages/backend/src/core/MahjongService.ts b/packages/backend/src/core/MahjongService.ts
index 9a6422340e..f72e4731d6 100644
--- a/packages/backend/src/core/MahjongService.ts
+++ b/packages/backend/src/core/MahjongService.ts
@@ -321,11 +321,11 @@ export class MahjongService implements OnApplicationShutdown, OnModuleInit {
 				this.waitForTurn(room, res.turn, engine);
 				break;
 			case 'ponned':
-				this.globalEventService.publishMahjongRoomStream(room.id, 'ponned', { caller: res.caller, callee: res.callee, tile: res.tile });
+				this.globalEventService.publishMahjongRoomStream(room.id, 'ponned', { caller: res.caller, callee: res.callee, tiles: res.tiles });
 				this.waitForTurn(room, res.turn, engine);
 				break;
 			case 'kanned':
-				this.globalEventService.publishMahjongRoomStream(room.id, 'kanned', { caller: res.caller, callee: res.callee, tile: res.tile, rinsyan: res.rinsyan });
+				this.globalEventService.publishMahjongRoomStream(room.id, 'kanned', { caller: res.caller, callee: res.callee, tiles: res.tiles, rinsyan: res.rinsyan });
 				this.waitForTurn(room, res.turn, engine);
 				break;
 			case 'ronned':
@@ -501,8 +501,10 @@ export class MahjongService implements OnApplicationShutdown, OnModuleInit {
 		await this.clearTurnWaitingTimer(room.id);
 
 		const res = engine.commit_ankan(myHouse, tile);
+		room.gameState = engine.state;
+		await this.saveRoom(room);
 
-		this.globalEventService.publishMahjongRoomStream(room.id, 'ankanned', { });
+		this.globalEventService.publishMahjongRoomStream(room.id, 'ankanned', { house: myHouse, tiles: res.tiles, rinsyan: res.rinsyan });
 
 		this.waitForTurn(room, myHouse, engine);
 	}
@@ -519,8 +521,10 @@ export class MahjongService implements OnApplicationShutdown, OnModuleInit {
 		await this.clearTurnWaitingTimer(room.id);
 
 		const res = engine.commit_kakan(myHouse, tile);
+		room.gameState = engine.state;
+		await this.saveRoom(room);
 
-		this.globalEventService.publishMahjongRoomStream(room.id, 'kakanned', { });
+		this.globalEventService.publishMahjongRoomStream(room.id, 'kakanned', { house: myHouse, tiles: res.tiles, rinsyan: res.rinsyan, from: res.from });
 	}
 
 	@bindThis
@@ -535,6 +539,8 @@ export class MahjongService implements OnApplicationShutdown, OnModuleInit {
 		await this.clearTurnWaitingTimer(room.id);
 
 		const res = engine.commit_tsumoHora(myHouse);
+		room.gameState = engine.state;
+		await this.saveRoom(room);
 
 		this.globalEventService.publishMahjongRoomStream(room.id, 'tsumoHora', { house: myHouse, handTiles: res.handTiles, tsumoTile: res.tsumoTile });
 	}
diff --git a/packages/frontend/src/pages/mahjong/room.game.vue b/packages/frontend/src/pages/mahjong/room.game.vue
index e1ab9bcff7..c1f344831a 100644
--- a/packages/frontend/src/pages/mahjong/room.game.vue
+++ b/packages/frontend/src/pages/mahjong/room.game.vue
@@ -520,7 +520,7 @@ function onStreamPonned(log) {
 	//	return;
 	//}
 
-	engine.value.commit_pon(log.caller, log.callee);
+	engine.value.commit_pon(log.caller, log.callee, log.tiles);
 	triggerRef(engine);
 
 	ponSerifHouses[log.caller] = true;
@@ -531,6 +531,42 @@ function onStreamPonned(log) {
 	myTurnTimerRmain.value = room.value.timeLimitForEachTurn;
 }
 
+function onStreamKanned(log) {
+	console.log('onStreamKanned', log);
+
+	engine.value.commit_kan(log.caller, log.callee, log.tiles, log.rinsyan);
+	triggerRef(engine);
+
+	kanSerifHouses[log.caller] = true;
+	window.setTimeout(() => {
+		kanSerifHouses[log.caller] = false;
+	}, 2000);
+}
+
+function onStreamKakanned(log) {
+	console.log('onStreamKakanned', log);
+
+	engine.value.commit_kakan(log.house, log.tiles, log.rinsyan);
+	triggerRef(engine);
+
+	kanSerifHouses[log.caller] = true;
+	window.setTimeout(() => {
+		kanSerifHouses[log.caller] = false;
+	}, 2000);
+}
+
+function onStreamAnkanned(log) {
+	console.log('onStreamAnkanned', log);
+
+	engine.value.commit_ankan(log.house, log.tiles, log.rinsyan);
+	triggerRef(engine);
+
+	kanSerifHouses[log.caller] = true;
+	window.setTimeout(() => {
+		kanSerifHouses[log.caller] = false;
+	}, 2000);
+}
+
 function onStreamRonned(log) {
 	console.log('onStreamRonned', log);
 
@@ -579,6 +615,9 @@ onMounted(() => {
 		props.connection.on('tsumo', onStreamTsumo);
 		props.connection.on('dahaiAndTsumo', onStreamDahaiAndTsumo);
 		props.connection.on('ponned', onStreamPonned);
+		props.connection.on('kanned', onStreamKanned);
+		props.connection.on('kakanned', onStreamKakanned);
+		props.connection.on('ankanned', onStreamAnkanned);
 		props.connection.on('ronned', onStreamRonned);
 		props.connection.on('tsumoHora', onStreamTsumoHora);
 	}
@@ -590,6 +629,9 @@ onActivated(() => {
 		props.connection.on('tsumo', onStreamTsumo);
 		props.connection.on('dahaiAndTsumo', onStreamDahaiAndTsumo);
 		props.connection.on('ponned', onStreamPonned);
+		props.connection.on('kanned', onStreamKanned);
+		props.connection.on('kakanned', onStreamKakanned);
+		props.connection.on('ankanned', onStreamAnkanned);
 		props.connection.on('ronned', onStreamRonned);
 		props.connection.on('tsumoHora', onStreamTsumoHora);
 	}
@@ -601,6 +643,9 @@ onDeactivated(() => {
 		props.connection.off('tsumo', onStreamTsumo);
 		props.connection.off('dahaiAndTsumo', onStreamDahaiAndTsumo);
 		props.connection.off('ponned', onStreamPonned);
+		props.connection.off('kanned', onStreamKanned);
+		props.connection.off('kakanned', onStreamKakanned);
+		props.connection.off('ankanned', onStreamAnkanned);
 		props.connection.off('ronned', onStreamRonned);
 		props.connection.off('tsumoHora', onStreamTsumoHora);
 	}
@@ -612,6 +657,9 @@ onUnmounted(() => {
 		props.connection.off('tsumo', onStreamTsumo);
 		props.connection.off('dahaiAndTsumo', onStreamDahaiAndTsumo);
 		props.connection.off('ponned', onStreamPonned);
+		props.connection.off('kanned', onStreamKanned);
+		props.connection.off('kakanned', onStreamKakanned);
+		props.connection.off('ankanned', onStreamAnkanned);
 		props.connection.off('ronned', onStreamRonned);
 		props.connection.off('tsumoHora', onStreamTsumoHora);
 	}
diff --git a/packages/misskey-mahjong/src/engine.master.ts b/packages/misskey-mahjong/src/engine.master.ts
index d41f1ffbc4..8a9cb1993b 100644
--- a/packages/misskey-mahjong/src/engine.master.ts
+++ b/packages/misskey-mahjong/src/engine.master.ts
@@ -405,7 +405,8 @@ export class MasterGameEngine {
 		const pon = this.state.huros[house].find(h => h.type === 'pon' && $type(h.tiles[0]) === $type(tile));
 		if (pon == null) throw new Error('No such pon');
 		this.state.handTiles[house].splice(this.state.handTiles[house].indexOf(tile), 1);
-		this.state.huros[house].push({ type: 'minkan', tiles: [...pon.tiles, tile], from: pon.from });
+		const tiles = [tile, ...pon.tiles];
+		this.state.huros[house].push({ type: 'minkan', tiles: tiles, from: pon.from });
 
 		this.state.activatedDorasCount++;
 
@@ -413,6 +414,8 @@ export class MasterGameEngine {
 
 		return {
 			rinsyan,
+			tiles,
+			from: pon.from,
 		};
 	}
 
@@ -429,7 +432,8 @@ export class MasterGameEngine {
 		this.state.handTiles[house].splice(this.state.handTiles[house].indexOf(t2), 1);
 		this.state.handTiles[house].splice(this.state.handTiles[house].indexOf(t3), 1);
 		this.state.handTiles[house].splice(this.state.handTiles[house].indexOf(t4), 1);
-		this.state.huros[house].push({ type: 'ankan', tiles: [t1, t2, t3, t4] });
+		const tiles = [t1, t2, t3, t4];
+		this.state.huros[house].push({ type: 'ankan', tiles: tiles });
 
 		this.state.activatedDorasCount++;
 
@@ -437,6 +441,7 @@ export class MasterGameEngine {
 
 		return {
 			rinsyan,
+			tiles,
 		};
 	}
 
@@ -502,19 +507,20 @@ export class MasterGameEngine {
 		} else if (kan != null && answers.kan) {
 			// 大明槓
 
+			const tile = this.state.hoTiles[kan.callee].pop()!;
 			const t1 = this.state.handTiles[kan.caller].filter(t => $type(t) === $type(tile)).at(0);
 			if (t1 == null) throw new Error('No such tile');
 			const t2 = this.state.handTiles[kan.caller].filter(t => $type(t) === $type(tile)).at(1);
 			if (t2 == null) throw new Error('No such tile');
 			const t3 = this.state.handTiles[kan.caller].filter(t => $type(t) === $type(tile)).at(2);
 			if (t3 == null) throw new Error('No such tile');
-			const tile = this.state.hoTiles[kan.callee].pop()!;
 
 			this.state.handTiles[kan.caller].splice(this.state.handTiles[kan.caller].indexOf(t1), 1);
 			this.state.handTiles[kan.caller].splice(this.state.handTiles[kan.caller].indexOf(t2), 1);
 			this.state.handTiles[kan.caller].splice(this.state.handTiles[kan.caller].indexOf(t3), 1);
 
-			this.state.huros[kan.caller].push({ type: 'minkan', tiles: [tile, t1, t2, t3], from: kan.callee });
+			const tiles = [tile, t1, t2, t3];
+			this.state.huros[kan.caller].push({ type: 'minkan', tiles: tiles, from: kan.callee });
 
 			this.state.activatedDorasCount++;
 
@@ -526,21 +532,22 @@ export class MasterGameEngine {
 				type: 'kanned' as const,
 				caller: kan.caller,
 				callee: kan.callee,
-				tile,
+				tiles: tiles,
 				rinsyan,
 				turn: this.state.turn,
 			};
 		} else if (pon != null && answers.pon) {
+			const tile = this.state.hoTiles[pon.callee].pop()!;
 			const t1 = this.state.handTiles[pon.caller].filter(t => $type(t) === $type(tile)).at(0);
 			if (t1 == null) throw new Error('No such tile');
 			const t2 = this.state.handTiles[pon.caller].filter(t => $type(t) === $type(tile)).at(1);
 			if (t2 == null) throw new Error('No such tile');
-			const tile = this.state.hoTiles[pon.callee].pop()!;
 
 			this.state.handTiles[pon.caller].splice(this.state.handTiles[pon.caller].indexOf(t1), 1);
 			this.state.handTiles[pon.caller].splice(this.state.handTiles[pon.caller].indexOf(t2), 1);
 
-			this.state.huros[pon.caller].push({ type: 'pon', tiles: [tile, t1, t2], from: pon.callee });
+			const tiles = [tile, t1, t2];
+			this.state.huros[pon.caller].push({ type: 'pon', tiles: tiles, from: pon.callee });
 
 			this.state.turn = pon.caller;
 
@@ -548,7 +555,7 @@ export class MasterGameEngine {
 				type: 'ponned' as const,
 				caller: pon.caller,
 				callee: pon.callee,
-				tile,
+				tiles: tiles,
 				turn: this.state.turn,
 			};
 		} else if (cii != null && answers.cii) {
diff --git a/packages/misskey-mahjong/src/engine.player.ts b/packages/misskey-mahjong/src/engine.player.ts
index 91ec136424..01b48c2bf3 100644
--- a/packages/misskey-mahjong/src/engine.player.ts
+++ b/packages/misskey-mahjong/src/engine.player.ts
@@ -162,11 +162,6 @@ export class PlayerGameEngine {
 		}
 	}
 
-	public commit_kakan(house: House, tile: TileId) {
-		console.log('commit_kakan', this.state.turn, house, tile);
-		if (this.state.turn !== house) throw new PlayerGameEngine.InvalidOperationError();
-	}
-
 	public commit_tsumoHora(house: House, handTiles: TileId[], tsumoTile: TileId): KyokuResult {
 		console.log('commit_tsumoHora', this.state.turn, house);
 
@@ -270,6 +265,38 @@ export class PlayerGameEngine {
 		this.state.turn = caller;
 	}
 
+	/**
+	 * 大明槓します
+	 * @param caller 大明槓した人
+	 * @param callee 牌を捨てた人
+	 */
+	public commit_kan(caller: House, callee: House, tiles: TileId[], rinsyan: TileId) {
+		this.state.canKan = null;
+
+		this.state.hoTiles[callee].pop();
+		if (caller === this.myHouse) {
+			if (this.myHandTiles.includes(tiles[0])) this.myHandTiles.splice(this.myHandTiles.indexOf(tiles[0]), 1);
+			if (this.myHandTiles.includes(tiles[1])) this.myHandTiles.splice(this.myHandTiles.indexOf(tiles[1]), 1);
+			if (this.myHandTiles.includes(tiles[2])) this.myHandTiles.splice(this.myHandTiles.indexOf(tiles[2]), 1);
+			if (this.myHandTiles.includes(tiles[3])) this.myHandTiles.splice(this.myHandTiles.indexOf(tiles[3]), 1);
+		} else {
+			this.state.handTiles[caller].unshift();
+			this.state.handTiles[caller].unshift();
+			this.state.handTiles[caller].unshift();
+		}
+		this.state.huros[caller].push({ type: 'minkan', tiles: tiles, from: callee });
+
+		this.state.turn = caller;
+	}
+
+	public commit_kakan(house: House, tiles: TileId[], rinsyan: TileId) {
+		console.log('commit_kakan', this.state.turn, house, tiles);
+	}
+
+	public commit_ankan(house: House, tiles: TileId[], rinsyan: TileId) {
+		console.log('commit_kakan', this.state.turn, house, tiles);
+	}
+
 	public commit_nop() {
 		this.state.canRon = null;
 		this.state.canPon = null;