diff --git a/backend/prisma/migrations/20231111115551_add_oweer_id/migration.sql b/backend/prisma/migrations/20231111115551_add_oweer_id/migration.sql
new file mode 100644
index 00000000..22ba93f4
--- /dev/null
+++ b/backend/prisma/migrations/20231111115551_add_oweer_id/migration.sql
@@ -0,0 +1,15 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[ownerId]` on the table `Room` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `ownerId` to the `Room` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "Room" ADD COLUMN     "ownerId" INTEGER NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Room_ownerId_key" ON "Room"("ownerId");
+
+-- AddForeignKey
+ALTER TABLE "Room" ADD CONSTRAINT "Room_ownerId_fkey" FOREIGN KEY ("ownerId") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20231113020147_many_to_many_userroom/migration.sql b/backend/prisma/migrations/20231113020147_many_to_many_userroom/migration.sql
new file mode 100644
index 00000000..34443dd2
--- /dev/null
+++ b/backend/prisma/migrations/20231113020147_many_to_many_userroom/migration.sql
@@ -0,0 +1,29 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `ownerId` on the `Room` table. All the data in the column will be lost.
+
+*/
+-- DropForeignKey
+ALTER TABLE "Room" DROP CONSTRAINT "Room_ownerId_fkey";
+
+-- DropIndex
+DROP INDEX "Room_ownerId_key";
+
+-- AlterTable
+ALTER TABLE "Room" DROP COLUMN "ownerId";
+
+-- CreateTable
+CREATE TABLE "useronroom" (
+    "id" SERIAL NOT NULL,
+    "userid" INTEGER NOT NULL,
+    "roomid" INTEGER NOT NULL,
+
+    CONSTRAINT "useronroom_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "useronroom" ADD CONSTRAINT "useronroom_userid_fkey" FOREIGN KEY ("userid") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "useronroom" ADD CONSTRAINT "useronroom_roomid_fkey" FOREIGN KEY ("roomid") REFERENCES "Room"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20231113023444_add_role_column_user/migration.sql b/backend/prisma/migrations/20231113023444_add_role_column_user/migration.sql
new file mode 100644
index 00000000..63ee3696
--- /dev/null
+++ b/backend/prisma/migrations/20231113023444_add_role_column_user/migration.sql
@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - Added the required column `role` to the `useronroom` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "useronroom" ADD COLUMN     "role" TEXT NOT NULL;
diff --git a/backend/prisma/schema.prisma b/backend/prisma/schema.prisma
index 05562a92..3649b95a 100644
--- a/backend/prisma/schema.prisma
+++ b/backend/prisma/schema.prisma
@@ -15,9 +15,20 @@ model User {
   email String  @unique
   name  String?
   password String
+  rooms useronroom[]
 }
 
 model Room {
   id    Int     @id @default(autoincrement())
   name  String
-}
\ No newline at end of file
+  users useronroom[]
+}
+
+model useronroom {
+	id Int @id @default(autoincrement())
+	user User @relation(fields: [userid], references: [id])
+	userid Int
+	role String
+	room Room @relation(fields: [roomid], references: [id])
+	roomid Int
+}
diff --git a/backend/prisma/seed.ts b/backend/prisma/seed.ts
index 843709b0..f18e65c5 100644
--- a/backend/prisma/seed.ts
+++ b/backend/prisma/seed.ts
@@ -62,6 +62,14 @@ async function main() {
     update: {},
     create: {
       name: 'Room 1',
+      users: {
+        connect: [
+          { id: user1.id },
+          { id: user2.id },
+          { id: user3.id },
+          { id: user4.id },
+        ],
+      },
     },
   });
   const room2 = await prisma.room.upsert({
@@ -69,6 +77,9 @@ async function main() {
     update: {},
     create: {
       name: 'Room 2',
+      users: {
+        connect: [{ id: user1.id }, { id: user2.id }, { id: user4.id }],
+      },
     },
   });
 }
diff --git a/backend/src/room/dto/create-room-request.dto.ts b/backend/src/room/dto/create-room-request.dto.ts
new file mode 100644
index 00000000..edac03e3
--- /dev/null
+++ b/backend/src/room/dto/create-room-request.dto.ts
@@ -0,0 +1,9 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class CreateRoomRequestDto {
+  @IsNotEmpty()
+  @IsString()
+  @ApiProperty()
+  name: string;
+}
diff --git a/backend/src/room/dto/create-room.dto.ts b/backend/src/room/dto/create-room.dto.ts
index 846c2794..065c983b 100644
--- a/backend/src/room/dto/create-room.dto.ts
+++ b/backend/src/room/dto/create-room.dto.ts
@@ -1,12 +1,13 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { IsString, IsNotEmpty } from 'class-validator';
+import { IsString, IsNotEmpty, IsNumber } from 'class-validator';
 
 export class CreateRoomDto {
-  @ApiProperty()
-  id: number;
-
   @IsString()
   @IsNotEmpty()
   @ApiProperty()
   name: string;
+
+  @IsNumber()
+  @ApiProperty()
+  userId: number;
 }
diff --git a/backend/src/room/entities/room.entity.ts b/backend/src/room/entities/room.entity.ts
index 34a76c45..2d6b31dd 100644
--- a/backend/src/room/entities/room.entity.ts
+++ b/backend/src/room/entities/room.entity.ts
@@ -2,9 +2,14 @@ import { Room } from '@prisma/client';
 import { ApiProperty } from '@nestjs/swagger';
 
 export class RoomEntity implements Room {
-  @ApiProperty()
+  constructor(partial: Partial<RoomEntity>) {
+    Object.assign(this, partial);
+  }
   id: number;
 
   @ApiProperty()
   name: string;
+
+  @ApiProperty()
+  ownerId: number;
 }
diff --git a/backend/src/room/room.controller.ts b/backend/src/room/room.controller.ts
index f2fcca58..56fbb51c 100644
--- a/backend/src/room/room.controller.ts
+++ b/backend/src/room/room.controller.ts
@@ -7,12 +7,21 @@ import {
   Param,
   Delete,
   ParseIntPipe,
+  UseGuards,
+  Req,
 } from '@nestjs/common';
 import { RoomService } from './room.service';
 import { CreateRoomDto } from './dto/create-room.dto';
 import { UpdateRoomDto } from './dto/update-room.dto';
-import { ApiTags, ApiCreatedResponse, ApiOkResponse } from '@nestjs/swagger';
+import { CreateRoomRequestDto } from './dto/create-room-request.dto';
+import {
+  ApiTags,
+  ApiCreatedResponse,
+  ApiOkResponse,
+  ApiBearerAuth,
+} from '@nestjs/swagger';
 import { RoomEntity } from './entities/room.entity';
+import { JwtAuthGuard } from 'src/auth/jwt-auth.guard';
 
 @Controller('room')
 @ApiTags('room')
@@ -20,9 +29,17 @@ export class RoomController {
   constructor(private readonly roomService: RoomService) {}
 
   @Post()
+  @UseGuards(JwtAuthGuard)
+  @ApiBearerAuth()
   @ApiCreatedResponse({ type: CreateRoomDto })
-  create(@Body() createRoomDto: CreateRoomDto) {
-    return this.roomService.create(createRoomDto);
+  create(
+    @Body() createRoomRequestDto: CreateRoomRequestDto,
+    @Req() request: Request,
+  ) {
+    return this.roomService.create({
+      ...createRoomRequestDto,
+      userId: request['user']['id'],
+    });
   }
 
   @Get()
diff --git a/backend/src/room/room.service.ts b/backend/src/room/room.service.ts
index fe371282..317c62ed 100644
--- a/backend/src/room/room.service.ts
+++ b/backend/src/room/room.service.ts
@@ -8,7 +8,19 @@ export class RoomService {
   constructor(private prisma: PrismaService) {}
 
   create(createRoomDto: CreateRoomDto) {
-    return this.prisma.room.create({ data: createRoomDto });
+    return this.prisma.room.create({
+      data: {
+        name: createRoomDto.name,
+        users: {
+          create: [
+            {
+              userid: createRoomDto.userId,
+              role: 'owner',
+            },
+          ],
+        },
+      },
+    });
   }
 
   findAll() {