Happy Birthday! Your parents wish you a happy birthday and the gift they give you is a key to room? They take you to a room in the house that you have never been to before and just say, "Have fun."

When your parents leave, leaving you alone, you use the key to unlock the room. Inside, it's dark, small, and the windows are barred. The bed is surrounded by another cage, there's someone sleeping on the bed! And around the room, there are many tools for you to play.