The student council members are instructed to practice with the swimming club, and Hime is reluctant about wearing a girl's swimsuit. The public morals committee arrives, and Unko suggests they have a contest to decide who gets to use the pool. The first race is between Unko and Kaguya, but Kaguya is surprised at Unko's swimming speed and loses to her. The second race is between Mitsunaga and Hime, but Hime immediately starts drowning because he cannot swim. 18-kin jumps in and saves Hime. Afterward, Hime reflexively covers his bare chest, and 18-kin comments that he finally has the mind of a girl.