Sora, a member of the track and field team, is told that she is on the verge of participating in the tournament, so she applies to participate in an intensive training camp. However, when they go to the training camp, only Sora and the coach are there. Taking advantage of the fact that no other club members are around, the coach touches Sora's body lewdly while she is doing the air chair. Anticipating that Sora would not be able to resist, the coach pressed the tip of his glans against Sora's vagina in order to make her endure the air chair...Sora tried her best not to drop her hips, but eventually her physical strength reached her limit and the penis was gradually inserted one centimeter and two centimeters into her.