Yui, a member of the track and field club who is told that she is on the verge of participating in the tournament, applies for participation in the intensive training camp. However, when they went to the training camp, there were only Yui and the coach. Taking advantage of the lack of other club members, the coach touches Yui's body in an air chair with lewd gestures. The coach, who foresaw that Yui could not resist, presses the tip of the glans against Yui's vaginal opening to make her endure the air chair. The meat stick is inserted gradually by 1 cm and 2 cm.
