In this chapter, we are introduced to Hiroshi and his sister, Mimori, who are now living together in Hirotoshi's room. We learn that Mimori has been injured in an accident while protecting her sister from a creep, and that Hirohito has been making a lot of money by playing his games. Mimori's new clothes and uniform are very different from those of the other students, and she is worried that she will not be able to adjust to her new life at school. She asks Hirotoshi if he has any friends, and he replies that he does not. He tells her that if she starts training today, she will become the "princess of her grade," and that he will marry a woman of twenty years his junior. He also tells Mimori that he cannot abandon her, because she is only 30 minutes away from class. He says he will let her handle that, and Mimori asks if she has a stomach ache. She sighs and says that she does not have any friends. She wonders what happened to her, and wonders why she has not been able to find anyone to talk to. She is afraid of the battlefield, so she runs away, and Hiroshi buys her some shoes, explaining that he found her quickly using his sixth sense. She tells him that she has no money, but that she is his dear sister.