Recently, Ryo, a wife who feels she is not seen as a woman by her husband, starts a personal gym that travels to clients in order to make her husband notice her. In the afternoons when her husband is away, she has a private lesson with Alex, a black youth, once a week. Ryo feels manliness from Alex's muscular body. On the other hand, Alex develops feelings for Ryo's alluring body. One day, after finishing at the gym, Ryo glances at Alex's body and sees that his pants are bulging, straining to contain his erection...
