diff --git a/apps/server/src/application/coordinators/disconnectCoordinator.ts b/apps/server/src/application/coordinators/disconnectCoordinator.ts
index c81b8cf..8075b48 100644
--- a/apps/server/src/application/coordinators/disconnectCoordinator.ts
+++ b/apps/server/src/application/coordinators/disconnectCoordinator.ts
@@ -2,30 +2,46 @@
  * disconnectCoordinator
  * DISCONNECTイベントの調停を行い，ゲーム離脱処理とルーム離脱処理を順序実行する
  */
-import type { DisconnectPlayerPort } from "@server/domains/game/application/ports/gameUseCasePorts";
+import {
+  type DisconnectPlayerPort,
+  type GameOutputPort,
+} from "@server/domains/game/application/ports/gameUseCasePorts";
+import { disconnectUseCase } from "@server/domains/game/application/useCases/disconnectUseCase";
 import type {
   DisconnectRoomPort,
   FindRoomByPlayerPort,
+  RoomOutputPort,
 } from "@server/domains/room/application/ports/roomUseCasePorts";
-import { handleGameDisconnect } from "@server/network/handlers/GameHandler";
-import { handleRoomDisconnect } from "@server/network/handlers/RoomHandler";
+import { roomDisconnectUseCase } from "@server/domains/room/application/useCases/roomDisconnectUseCase";
 
 type DisconnectCoordinatorParams = {
-  io: Parameters<typeof handleGameDisconnect>[0];
   socketId: string;
   gameManager: DisconnectPlayerPort;
   roomManager: DisconnectRoomPort & FindRoomByPlayerPort;
+  gameOutput: Pick<GameOutputPort, "publishPlayerRemovedToRoom">;
+  roomOutput: Pick<RoomOutputPort, "publishRoomUpdateToRoom">;
 };
 
 /** 切断時にゲーム処理とルーム処理を調停し，一貫した離脱処理を実行する */
 export const disconnectCoordinator = ({
-  io,
   socketId,
   gameManager,
   roomManager,
+  gameOutput,
+  roomOutput,
 }: DisconnectCoordinatorParams) => {
   const roomId = roomManager.getRoomByPlayerId(socketId)?.roomId;
 
-  handleGameDisconnect(io, gameManager, roomId, socketId);
-  handleRoomDisconnect(io, socketId, roomManager);
+  disconnectUseCase({
+    gameManager,
+    roomId,
+    playerId: socketId,
+    output: gameOutput,
+  });
+
+  roomDisconnectUseCase({
+    roomManager,
+    socketId,
+    output: roomOutput,
+  });
 };
diff --git a/apps/server/src/network/handlers/GameHandler.ts b/apps/server/src/network/handlers/GameHandler.ts
index 3cefc15..c2be16e 100644
--- a/apps/server/src/network/handlers/GameHandler.ts
+++ b/apps/server/src/network/handlers/GameHandler.ts
@@ -4,5 +4,3 @@
  */
 /** ゲームイベント受信ハンドラ登録関数を再公開する */
 export { registerGameHandlers } from "./game/registerGameHandlers";
-/** ゲーム切断処理ハンドラを再公開する */
-export { handleGameDisconnect } from "./game/handleGameDisconnect";
diff --git a/apps/server/src/network/handlers/RoomHandler.ts b/apps/server/src/network/handlers/RoomHandler.ts
index 4ff4894..9710aaa 100644
--- a/apps/server/src/network/handlers/RoomHandler.ts
+++ b/apps/server/src/network/handlers/RoomHandler.ts
@@ -4,5 +4,3 @@
  */
 /** ルームイベント受信ハンドラ登録関数を再公開する */
 export { registerRoomHandlers } from "./room/registerRoomHandlers";
-/** ルーム切断処理ハンドラを再公開する */
-export { handleRoomDisconnect } from "./room/handleRoomDisconnect";
diff --git a/apps/server/src/network/handlers/game/handleGameDisconnect.ts b/apps/server/src/network/handlers/game/handleGameDisconnect.ts
deleted file mode 100644
index 9cb11a0..0000000
--- a/apps/server/src/network/handlers/game/handleGameDisconnect.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-/**
- * handleGameDisconnect
- * ゲーム切断ユースケースを呼び出してプレイヤー離脱を配信する
- */
-import { Server } from "socket.io";
-import type { DisconnectPlayerPort } from "@server/domains/game/application/ports/gameUseCasePorts";
-import { disconnectUseCase } from "@server/domains/game/application/useCases/disconnectUseCase";
-import { createGameDisconnectOutputAdapter } from "./createGameOutputAdapter";
-
-/** 切断したプレイヤーをゲーム管理から除外し通知する */
-export const handleGameDisconnect = (
-  io: Server,
-  gameManager: DisconnectPlayerPort,
-  roomId: string | undefined,
-  playerId: string
-) => {
-  const gameDisconnectOutputAdapter = createGameDisconnectOutputAdapter(io);
-
-  disconnectUseCase({
-    gameManager,
-    roomId,
-    playerId,
-    output: gameDisconnectOutputAdapter,
-  });
-};
diff --git a/apps/server/src/network/handlers/registerConnectionHandlers.ts b/apps/server/src/network/handlers/registerConnectionHandlers.ts
index aa00256..9731a4c 100644
--- a/apps/server/src/network/handlers/registerConnectionHandlers.ts
+++ b/apps/server/src/network/handlers/registerConnectionHandlers.ts
@@ -21,24 +21,27 @@
 import { registerGameHandlers } from "./GameHandler";
 import { logEvent } from "@server/logging/logEvent";
 import { disconnectCoordinator } from "@server/application/coordinators/disconnectCoordinator";
+import { createGameDisconnectOutputAdapter } from "./game/createGameOutputAdapter";
+import { createRoomDisconnectOutputAdapter } from "./room/createRoomOutputAdapter";
 
 type ConnectionGamePort =
   & StartGamePort
   & ReadyForGamePort
-  & MovePlayerPort
-  & DisconnectPlayerPort;
+  & MovePlayerPort;
+
+type DisconnectGamePort = DisconnectPlayerPort;
 
 type ConnectionRoomPort =
   & JoinRoomPort
   & StartGameRoomPort
-  & ReadyForGameRoomPort
-  & DisconnectRoomPort
-  & FindRoomByPlayerPort;
+  & ReadyForGameRoomPort;
+
+type DisconnectRoomHandlerPort = DisconnectRoomPort & FindRoomByPlayerPort;
 
 type RegisterConnectionHandlersParams = {
   io: Server;
-  gameManager: ConnectionGamePort;
-  roomManager: ConnectionRoomPort;
+  gameManager: ConnectionGamePort & DisconnectGamePort;
+  roomManager: ConnectionRoomPort & DisconnectRoomHandlerPort;
 };
 
 /** ソケット接続と切断イベントに対する共通ハンドラを登録する */
@@ -47,6 +50,13 @@
   gameManager,
   roomManager,
 }: RegisterConnectionHandlersParams) => {
+  const gameDisconnectOutputAdapter = createGameDisconnectOutputAdapter(io);
+  const roomDisconnectOutputAdapter = createRoomDisconnectOutputAdapter(io);
+  const connectionGameManager: ConnectionGamePort = gameManager;
+  const disconnectGameManager: DisconnectGamePort = gameManager;
+  const connectionRoomManager: ConnectionRoomPort = roomManager;
+  const disconnectRoomManager: DisconnectRoomHandlerPort = roomManager;
+
   io.on(protocol.SocketEvents.CONNECT, (socket: Socket) => {
     // 接続ログを記録してドメイン別ハンドラを登録する
     logEvent("Network", {
@@ -55,8 +65,8 @@
       socketId: socket.id,
     });
 
-    registerRoomHandlers(io, socket, roomManager);
-    registerGameHandlers(io, socket, gameManager, roomManager);
+    registerRoomHandlers(io, socket, connectionRoomManager);
+    registerGameHandlers(io, socket, connectionGameManager, connectionRoomManager);
 
     socket.on(protocol.SocketEvents.DISCONNECT, () => {
       // 切断ログ記録後にドメイン別の後処理を実行する
@@ -67,10 +77,11 @@
       });
 
       disconnectCoordinator({
-        io,
         socketId: socket.id,
-        gameManager,
-        roomManager,
+        gameManager: disconnectGameManager,
+        roomManager: disconnectRoomManager,
+        gameOutput: gameDisconnectOutputAdapter,
+        roomOutput: roomDisconnectOutputAdapter,
       });
     });
   });
diff --git a/apps/server/src/network/handlers/room/handleRoomDisconnect.ts b/apps/server/src/network/handlers/room/handleRoomDisconnect.ts
deleted file mode 100644
index 213741b..0000000
--- a/apps/server/src/network/handlers/room/handleRoomDisconnect.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-/**
- * handleRoomDisconnect
- * ルーム切断ユースケースを呼び出してルーム状態更新を配信する
- */
-import { Server } from "socket.io";
-import type { DisconnectRoomPort } from "@server/domains/room/application/ports/roomUseCasePorts";
-import { roomDisconnectUseCase } from "@server/domains/room/application/useCases/roomDisconnectUseCase";
-import { createRoomDisconnectOutputAdapter } from "./createRoomOutputAdapter";
-
-/** 切断ソケットのルーム離脱処理を実行して更新通知する */
-export const handleRoomDisconnect = (
-  io: Server,
-  socketId: string,
-  roomManager: DisconnectRoomPort
-) => {
-  const roomDisconnectOutputAdapter = createRoomDisconnectOutputAdapter(io);
-
-  roomDisconnectUseCase({
-    roomManager,
-    socketId,
-    output: roomDisconnectOutputAdapter,
-  });
-};