In this chapter, we are introduced to a new character named kumakawasan, who has just arrived at the police station. We are told that he has just asked for help from the desk and that he is here to find out what has happened to his sister risa chan. He tells us that his sister sent him a picture of her as a detective in a violent crime division. He says that she sent him the picture because she was worried that her sister was going to make him angry, and that she would be back for revenge. . The letter he has sent , he says, is the fifteenth in a series of letters he's sent . He asks watson why he hasn't answered the letter, and he says that he wishes he could kill him and die himself. He also says that if he doesn't kill himself, then he will pluck off two of his lovebirds.