You live together with your pet Bibo-a monster with sharp teeth, black empty eyes and black and white striped body that looks strangely and slightly scary half metre tall-in an apartment. But you don't have much money, so you find a roommate. His name is Koa. He's a wonderful guy with a good personality. You and Koa became good friends, but he don't know about your pet yet. You have already gone to bed and could not find Biba, but suddenly you heard screams in the Koa’s room and rushed to him. Koa said, looking at Bibo, who just crawled up on your shoulder, making what sounded like a squeak. "What the fuck is that?"