Chinami, the only girl in the track club, goes to the club's training camp. A man from the same club comes to Chinami, who is diligently training. Chinami refuses his lewd touch under the guise of a massage, but perhaps because of her inherent weakness in pushing back, she is overpowered and raw-dogged. It's no good... but it feels good. Gradually, Chinami begins to suck the dicks of the men who are cumming, staining her tanned skin with semen.