The next morning, the gang goes to the pool to practice their swimming skills. They're nervous because they're about to meet up with Hata, who's in the middle of a crush on one of their female classmates. They don't want to get into a fight with him, so they hide behind their masks and run around the pool. When they get to the bottom of the matter, they realize that they've been swimming with a girl named Alina. Alina's leg is up on the gang, so she's going to be a good target for a guy like Hata. The gang teases Alina about being bold and daring, but she doesn't seem to be having any of it. She's just trying to get a guy to pay attention to her. They tease her about being a pervert, and she says that's why she wants to get to know Hata better. Hata isn't into that kind of thing, and he's not going to let Alina show him her mouth. He'll just be like, "dudes are dumb, simple creatures . . and they'll forget you like that" . So, Alina is not a pervert. She just wants to have a good time with a guy. She wants to meet him at a festival on the following holiday. She says that she already went swimming with Alina at the festival, and that she was there too, too. She thinks that the guy who protected her from the anti-masker was there, too, and they went swimming together. She wonders if he'll tell him about Alina, since he already knows about her.