The chapter opens with a description of the murder of the Kisaragi family. The narrator explains that the killer is known as "reverse," meaning that he killed the family while the family was still alive. The photo of the killer, taken two years earlier, is on the key to the room, and the narrator advises that the girl should read up on what she went through. The girl tells the narrator that she found the bodies of her parents and that they were raped by the killer. She says that she is going to take revenge on the killer on her behalf, and that she will not leave the room.