diff --git a/prisma/migrations/20251219134248_add_doll_model/migration.sql b/prisma/migrations/20251219134248_add_doll_model/migration.sql
new file mode 100644
index 0000000..bacc51a
--- /dev/null
+++ b/prisma/migrations/20251219134248_add_doll_model/migration.sql
@@ -0,0 +1,15 @@
+-- CreateTable
+CREATE TABLE "dolls" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "configuration" JSONB NOT NULL,
+    "user_id" TEXT NOT NULL,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_at" TIMESTAMP(3) NOT NULL,
+    "deleted_at" TIMESTAMP(3),
+
+    CONSTRAINT "dolls_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "dolls" ADD CONSTRAINT "dolls_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 802ca45..b5e5fd7 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -47,6 +47,7 @@ model User {
   receivedFriendRequests FriendRequest[] @relation("ReceivedFriendRequests")
   userFriendships        Friendship[]    @relation("UserFriendships")
   friendFriendships      Friendship[]    @relation("FriendFriendships")
+  dolls                  Doll[]
 
   @@map("users")
 }
@@ -79,6 +80,20 @@ model Friendship {
   @@map("friendships")
 }
 
+model Doll {
+  id            String    @id @default(uuid())
+  name          String
+  configuration Json
+  userId        String    @map("user_id")
+  createdAt     DateTime  @default(now()) @map("created_at")
+  updatedAt     DateTime  @updatedAt @map("updated_at")
+  deletedAt     DateTime? @map("deleted_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@map("dolls")
+}
+
 enum FriendRequestStatus {
   PENDING
   ACCEPTED
diff --git a/src/app.module.ts b/src/app.module.ts
index 2b13058..cb6a608 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -10,6 +10,7 @@ import { DatabaseModule } from './database/database.module';
 import { RedisModule } from './database/redis.module';
 import { WsModule } from './ws/ws.module';
 import { FriendsModule } from './friends/friends.module';
+import { DollsModule } from './dolls/dolls.module';
 
 /**
  * Validates required environment variables.
@@ -69,6 +70,7 @@ function validateEnvironment(config: Record<string, any>): Record<string, any> {
     AuthModule,
     WsModule,
     FriendsModule,
+    DollsModule,
   ],
   controllers: [AppController],
   providers: [AppService],
diff --git a/src/dolls/dolls.controller.ts b/src/dolls/dolls.controller.ts
new file mode 100644
index 0000000..79f70f2
--- /dev/null
+++ b/src/dolls/dolls.controller.ts
@@ -0,0 +1,134 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Body,
+  Patch,
+  Param,
+  Delete,
+  UseGuards,
+  HttpCode,
+} from '@nestjs/common';
+import {
+  ApiTags,
+  ApiOperation,
+  ApiResponse,
+  ApiBearerAuth,
+  ApiUnauthorizedResponse,
+} from '@nestjs/swagger';
+import { DollsService } from './dolls.service';
+import { CreateDollDto } from './dto/create-doll.dto';
+import { UpdateDollDto } from './dto/update-doll.dto';
+import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import {
+  CurrentUser,
+  type AuthenticatedUser,
+} from '../auth/decorators/current-user.decorator';
+import { AuthService } from '../auth/auth.service';
+
+@ApiTags('dolls')
+@Controller('dolls')
+@UseGuards(JwtAuthGuard)
+@ApiBearerAuth()
+export class DollsController {
+  constructor(
+    private readonly dollsService: DollsService,
+    private readonly authService: AuthService,
+  ) {}
+
+  @Post()
+  @ApiOperation({
+    summary: 'Create a new doll',
+    description:
+      'Creates a new doll with the specified name and optional configuration. Defaults to black outline and white body if no configuration provided.',
+  })
+  @ApiResponse({
+    status: 201,
+    description: 'The doll has been successfully created.',
+  })
+  @ApiUnauthorizedResponse({ description: 'Unauthorized' })
+  async create(
+    @CurrentUser() authUser: AuthenticatedUser,
+    @Body() createDollDto: CreateDollDto,
+  ) {
+    const user = await this.authService.ensureUserExists(authUser);
+    return this.dollsService.create(user.id, createDollDto);
+  }
+
+  @Get()
+  @ApiOperation({
+    summary: 'Get all dolls',
+    description: 'Retrieves all dolls belonging to the authenticated user.',
+  })
+  @ApiResponse({
+    status: 200,
+    description: 'Return all dolls.',
+  })
+  @ApiUnauthorizedResponse({ description: 'Unauthorized' })
+  async findAll(@CurrentUser() authUser: AuthenticatedUser) {
+    const user = await this.authService.ensureUserExists(authUser);
+    return this.dollsService.findAll(user.id);
+  }
+
+  @Get(':id')
+  @ApiOperation({
+    summary: 'Get a doll by ID',
+    description: 'Retrieves a specific doll by its ID.',
+  })
+  @ApiResponse({
+    status: 200,
+    description: 'Return the doll.',
+  })
+  @ApiResponse({ status: 404, description: 'Doll not found' })
+  @ApiResponse({ status: 403, description: 'Forbidden' })
+  @ApiUnauthorizedResponse({ description: 'Unauthorized' })
+  async findOne(
+    @CurrentUser() authUser: AuthenticatedUser,
+    @Param('id') id: string,
+  ) {
+    const user = await this.authService.ensureUserExists(authUser);
+    return this.dollsService.findOne(id, user.id);
+  }
+
+  @Patch(':id')
+  @ApiOperation({
+    summary: 'Update a doll',
+    description: "Updates a doll's name or configuration.",
+  })
+  @ApiResponse({
+    status: 200,
+    description: 'The doll has been successfully updated.',
+  })
+  @ApiResponse({ status: 404, description: 'Doll not found' })
+  @ApiResponse({ status: 403, description: 'Forbidden' })
+  @ApiUnauthorizedResponse({ description: 'Unauthorized' })
+  async update(
+    @CurrentUser() authUser: AuthenticatedUser,
+    @Param('id') id: string,
+    @Body() updateDollDto: UpdateDollDto,
+  ) {
+    const user = await this.authService.ensureUserExists(authUser);
+    return this.dollsService.update(id, user.id, updateDollDto);
+  }
+
+  @Delete(':id')
+  @HttpCode(204)
+  @ApiOperation({
+    summary: 'Delete a doll',
+    description: 'Soft deletes a doll.',
+  })
+  @ApiResponse({
+    status: 204,
+    description: 'The doll has been successfully deleted.',
+  })
+  @ApiResponse({ status: 404, description: 'Doll not found' })
+  @ApiResponse({ status: 403, description: 'Forbidden' })
+  @ApiUnauthorizedResponse({ description: 'Unauthorized' })
+  async remove(
+    @CurrentUser() authUser: AuthenticatedUser,
+    @Param('id') id: string,
+  ) {
+    const user = await this.authService.ensureUserExists(authUser);
+    return this.dollsService.remove(id, user.id);
+  }
+}
diff --git a/src/dolls/dolls.module.ts b/src/dolls/dolls.module.ts
new file mode 100644
index 0000000..80f2f54
--- /dev/null
+++ b/src/dolls/dolls.module.ts
@@ -0,0 +1,13 @@
+import { Module } from '@nestjs/common';
+import { DollsService } from './dolls.service';
+import { DollsController } from './dolls.controller';
+import { DatabaseModule } from '../database/database.module';
+import { AuthModule } from '../auth/auth.module';
+
+@Module({
+  imports: [DatabaseModule, AuthModule],
+  controllers: [DollsController],
+  providers: [DollsService],
+  exports: [DollsService],
+})
+export class DollsModule {}
diff --git a/src/dolls/dolls.service.spec.ts b/src/dolls/dolls.service.spec.ts
new file mode 100644
index 0000000..09aa432
--- /dev/null
+++ b/src/dolls/dolls.service.spec.ts
@@ -0,0 +1,142 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { DollsService } from './dolls.service';
+import { PrismaService } from '../database/prisma.service';
+import { NotFoundException, ForbiddenException } from '@nestjs/common';
+import { Doll } from '@prisma/client';
+
+describe('DollsService', () => {
+  let service: DollsService;
+  let prismaService: PrismaService;
+
+  const mockDoll: Doll = {
+    id: 'doll-1',
+    name: 'Test Doll',
+    configuration: {
+      colorScheme: {
+        outline: '#000000',
+        body: '#FFFFFF',
+      },
+    },
+    userId: 'user-1',
+    createdAt: new Date(),
+    updatedAt: new Date(),
+    deletedAt: null,
+  };
+
+  const mockPrismaService = {
+    doll: {
+      create: jest.fn().mockResolvedValue(mockDoll),
+      findMany: jest.fn().mockResolvedValue([mockDoll]),
+      findFirst: jest.fn().mockResolvedValue(mockDoll),
+      update: jest.fn().mockResolvedValue(mockDoll),
+    },
+  };
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        DollsService,
+        {
+          provide: PrismaService,
+          useValue: mockPrismaService,
+        },
+      ],
+    }).compile();
+
+    service = module.get<DollsService>(DollsService);
+    prismaService = module.get<PrismaService>(PrismaService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+
+  describe('create', () => {
+    it('should create a doll with default configuration', async () => {
+      const createDto = { name: 'New Doll' };
+      const userId = 'user-1';
+
+      await service.create(userId, createDto);
+
+      expect(prismaService.doll.create).toHaveBeenCalledWith({
+        data: {
+          name: createDto.name,
+          configuration: {
+            colorScheme: {
+              outline: '#000000',
+              body: '#FFFFFF',
+            },
+          },
+          userId,
+        },
+      });
+    });
+  });
+
+  describe('findAll', () => {
+    it('should return an array of dolls', async () => {
+      const userId = 'user-1';
+      await service.findAll(userId);
+
+      expect(prismaService.doll.findMany).toHaveBeenCalledWith({
+        where: {
+          userId,
+          deletedAt: null,
+        },
+        orderBy: {
+          createdAt: 'asc',
+        },
+      });
+    });
+  });
+
+  describe('findOne', () => {
+    it('should return a doll if found and owned by user', async () => {
+      const userId = 'user-1';
+      const dollId = 'doll-1';
+
+      const result = await service.findOne(dollId, userId);
+      expect(result).toEqual(mockDoll);
+    });
+
+    it('should throw NotFoundException if doll not found', async () => {
+      jest.spyOn(prismaService.doll, 'findFirst').mockResolvedValueOnce(null);
+
+      await expect(service.findOne('doll-1', 'user-1')).rejects.toThrow(
+        NotFoundException,
+      );
+    });
+
+    it('should throw ForbiddenException if doll belongs to another user', async () => {
+      jest
+        .spyOn(prismaService.doll, 'findFirst')
+        .mockResolvedValueOnce({ ...mockDoll, userId: 'user-2' });
+
+      await expect(service.findOne('doll-1', 'user-1')).rejects.toThrow(
+        ForbiddenException,
+      );
+    });
+  });
+
+  describe('update', () => {
+    it('should update a doll', async () => {
+      const updateDto = { name: 'Updated Doll' };
+      await service.update('doll-1', 'user-1', updateDto);
+
+      expect(prismaService.doll.update).toHaveBeenCalled();
+    });
+  });
+
+  describe('remove', () => {
+    it('should soft delete a doll', async () => {
+      await service.remove('doll-1', 'user-1');
+
+      expect(prismaService.doll.update).toHaveBeenCalledWith({
+        where: { id: 'doll-1' },
+        data: {
+          deletedAt: expect.any(Date),
+        },
+      });
+    });
+  });
+});
diff --git a/src/dolls/dolls.service.ts b/src/dolls/dolls.service.ts
new file mode 100644
index 0000000..ec86684
--- /dev/null
+++ b/src/dolls/dolls.service.ts
@@ -0,0 +1,125 @@
+import {
+  Injectable,
+  NotFoundException,
+  ForbiddenException,
+  Logger,
+} from '@nestjs/common';
+import { PrismaService } from '../database/prisma.service';
+import { CreateDollDto, DollConfigurationDto } from './dto/create-doll.dto';
+import { UpdateDollDto } from './dto/update-doll.dto';
+import { Doll, Prisma } from '@prisma/client';
+
+@Injectable()
+export class DollsService {
+  private readonly logger = new Logger(DollsService.name);
+
+  constructor(private readonly prisma: PrismaService) {}
+
+  async create(userId: string, createDollDto: CreateDollDto): Promise<Doll> {
+    const defaultConfiguration: DollConfigurationDto = {
+      colorScheme: {
+        outline: '#000000',
+        body: '#FFFFFF',
+      },
+    };
+
+    // Merge default configuration with provided configuration
+    // If configuration or colorScheme is not provided, use defaults
+    const configuration: DollConfigurationDto = {
+      ...defaultConfiguration,
+      ...(createDollDto.configuration || {}),
+      colorScheme: {
+        ...defaultConfiguration.colorScheme!,
+        ...(createDollDto.configuration?.colorScheme || {}),
+      },
+    };
+
+    return this.prisma.doll.create({
+      data: {
+        name: createDollDto.name,
+        configuration: configuration as unknown as Prisma.InputJsonValue,
+        userId,
+      },
+    });
+  }
+
+  async findAll(userId: string): Promise<Doll[]> {
+    return this.prisma.doll.findMany({
+      where: {
+        userId,
+        deletedAt: null,
+      },
+      orderBy: {
+        createdAt: 'asc',
+      },
+    });
+  }
+
+  async findOne(id: string, userId: string): Promise<Doll> {
+    const doll = await this.prisma.doll.findFirst({
+      where: {
+        id,
+        deletedAt: null,
+      },
+    });
+
+    if (!doll) {
+      throw new NotFoundException(`Doll with ID ${id} not found`);
+    }
+
+    if (doll.userId !== userId) {
+      throw new ForbiddenException('You do not have access to this doll');
+    }
+
+    return doll;
+  }
+
+  async update(
+    id: string,
+    userId: string,
+    updateDollDto: UpdateDollDto,
+  ): Promise<Doll> {
+    const doll = await this.findOne(id, userId);
+
+    let configuration = doll.configuration as unknown as DollConfigurationDto;
+
+    if (updateDollDto.configuration) {
+      // Deep merge configuration if provided
+      configuration = {
+        ...configuration,
+        ...updateDollDto.configuration,
+        colorScheme: {
+          outline:
+            updateDollDto.configuration.colorScheme?.outline ||
+            configuration.colorScheme?.outline ||
+            '#000000',
+          body:
+            updateDollDto.configuration.colorScheme?.body ||
+            configuration.colorScheme?.body ||
+            '#FFFFFF',
+        },
+      };
+    }
+
+    return this.prisma.doll.update({
+      where: { id },
+      data: {
+        name: updateDollDto.name,
+        configuration: configuration as unknown as Prisma.InputJsonValue,
+      },
+    });
+  }
+
+  async remove(id: string, userId: string): Promise<void> {
+    // Check existence and ownership
+    await this.findOne(id, userId);
+
+    // Soft delete
+    await this.prisma.doll.update({
+      where: { id },
+      data: {
+        deletedAt: new Date(),
+      },
+    });
+  }
+}
diff --git a/src/dolls/dto/create-doll.dto.ts b/src/dolls/dto/create-doll.dto.ts
new file mode 100644
index 0000000..d03f417
--- /dev/null
+++ b/src/dolls/dto/create-doll.dto.ts
@@ -0,0 +1,57 @@
+import {
+  IsString,
+  IsNotEmpty,
+  IsOptional,
+  ValidateNested,
+  IsHexColor,
+} from 'class-validator';
+import { Type } from 'class-transformer';
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+
+export class DollColorSchemeDto {
+  @ApiProperty({
+    description: 'Outline color in HEX code (e.g. #000000)',
+    example: '#000000',
+  })
+  @IsString()
+  @IsHexColor()
+  outline: string;
+
+  @ApiProperty({
+    description: 'Body fill color in HEX code (e.g. #FFFFFF)',
+    example: '#FFFFFF',
+  })
+  @IsString()
+  @IsHexColor()
+  body: string;
+}
+
+export class DollConfigurationDto {
+  @ApiPropertyOptional({
+    description: 'Color scheme for the doll',
+    type: DollColorSchemeDto,
+  })
+  @IsOptional()
+  @ValidateNested()
+  @Type(() => DollColorSchemeDto)
+  colorScheme?: DollColorSchemeDto;
+}
+
+export class CreateDollDto {
+  @ApiProperty({
+    description: 'Display name of the doll',
+    example: 'My First Doll',
+  })
+  @IsString()
+  @IsNotEmpty()
+  name: string;
+
+  @ApiPropertyOptional({
+    description: 'Configuration for the doll',
+    type: DollConfigurationDto,
+  })
+  @IsOptional()
+  @ValidateNested()
+  @Type(() => DollConfigurationDto)
+  configuration?: DollConfigurationDto;
+}
diff --git a/src/dolls/dto/update-doll.dto.ts b/src/dolls/dto/update-doll.dto.ts
new file mode 100644
index 0000000..e457eb2
--- /dev/null
+++ b/src/dolls/dto/update-doll.dto.ts
@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/swagger';
+import { CreateDollDto } from './create-doll.dto';
+
+export class UpdateDollDto extends PartialType(CreateDollDto) {}