The narrator tells us that he's going to have sex with a classmate named Aoba, who is hiding under the cover of darkness. He's not sure if Aoba has a boyfriend or not, but he does know that one of the guys from the school's boys' club has been trying to find out whether or not Aoba is single or not. The narrator says that Aoba's boyfriend is probably a "boy friend" of Aoba. Aoba says that she's pretty sure that's what the guy is talking about, but the narrator doesn't believe him. He says that he went to school with Aoba and that he knows that the guy's name is "shish" . He asks Aoba what's up with the two of them today, and Aoba tells him that they're going to get into a bath together. He tells Aoba that he never said "I'm happy" , and that if they do the same thing, he'll slap her. He also says that slapping her could make her feel happy.