One of Keita's friends, Toda, coaxes him into going to the pool with him and Mikazuki and inviting Ako and Riko by handing him an erotic magazine. Suspicious of what they might be up to, Yūzuki decides to tail them, despite having a financial dilemma (since admission to the pool is costly). While trying to hide from them in the bathroom, she is found by Ako and Riko who, mistaking her for a peeping tom, soak her with water. With her clothes soaked, Yūzuki borrows Keita's gym outfit. Later that night, Yūzuki becomes entranced by the manly smell of Keita's outfit and masturbates while wearing it and fantasizing about Keita. She wakes up the next day to find that his pants became soaked in the process. Oddly, Keita has a nightmare about his teacher doing "stuff" with him.