Hinata Yuuki is an 18 year old girl who has just returned from a month of cram school. She has a diary that she brought with her. She tells the other students that she has had an accident and that she does not remember her own name or her family. She also tells them that her mom comes to help her with her housework and she has managed to live a normal life. She asks them if they know who the diary belongs to, and they tell her that it belongs to a middle school student who wants to die. She wonders if the people in the diary are the same people who will not die. When she asks her mom what is up, she tells her that they are all going bowling. When the girl asks if it is a guy, he says that he is not stupid enough to be out with a girl like her, and she tells him that she will send him there.