The next morning, the gang is getting ready to go to bed. Everyone's asleep, except for Eguchi, who's trying to sleep. He's worried about what's going to happen if he doesn't wake up. He asks Eguchi what he should do. Eguchi tells him to "fight mag" , which is a sexual game, and to bring his "first period" . He tells Eguchi that he had to bring the first period because he was supposed to have sex with a girl named sana, who was in his senior year at the university. He says that sana "just rode on" him and shook his hips like crazy, and that his "body hurts" because he's "too fierce" and "too greedy" to be able to "fuck her." Eguchi says that he wishes sana would let him fuck her, too.