Asuka, an excellent swimmer, is asked to join the boys in a training camp. When the camp begins, she thinks she's been practicing diligently, but her coach calls her in and warns her that she's seducing the boys. She is then forced to endure obscene instruction using a secretly filmed nude video of her as a pretext. She is then forced to satisfy the sexual needs of not only the coach, but also the swimming club's captain and members as a sex toy.