Miyu, a member of the track and field team, is told she is on the verge of qualifying for the tournament, so she applies to participate in an intensive training camp. However, when she arrives at the camp, she and her coach are the only two there. Taking advantage of the absence of other team members, the coach begins to lewdly touch Miyu's body as she performs the air chair. Anticipating that Miyu will not be able to resist, the coach places his hand on her vaginal opening, claiming that he is trying to make her endure the air chair...