Recently, Ryo, a wife who feels that her husband has not seen her as a woman, starts a business trip type personal gym to turn her around. In the afternoon without her husband, a weekly private lesson with a young black man, Alex. You can feel a man in Alex's strong body. On the other hand, Alex likes Ryo's lustrous body. One day, when I suddenly saw Alex's body at the end of the gym, his trousers were so erected that he could tear off ...