Kou, who teased Futaba when she was at a loss for an answer, was not the “Tanaka” back then. Futaba’s suspicions grow about what happened in the three years they haven’t seen each other. Meanwhile, Futaba and the others have to clean the pool as part of their training. Shuko is alone with Yoichi Tanaka, a teacher she has feelings for, but he warns her to return to the group. Futaba is worried about Shuko’s return, but she dismisses it as annoying, and Yuri injures her foot.
