Yui, a member of the track and field team, was told that she was on the borderline of competing in a tournament, so she applied to participate in an intensive training camp. However, when she arrived at the training camp, it was only Yui and the coach. Taking advantage of the fact that there were no other members, the coach touched Yui No body in a lewd manner as she performed the air chair. Anticipating that Yui would not be able to resist, the coach pressed the tip of his penis against the opening of Yui No vagina, claiming that he was trying to make her endure the air chair... Yui tried desperately not to drop her hips, but eventually her physical limits were reached and he inserted his penis one centimeter at a time.