Various obscene acts that take place during weight training! Emi joins a gym that creates special training menus that are never performed in ordinary gyms. A perverted erotic trainer implements various obscene training on Emi, who is working hard to transform her body with earnestness! Although she shows an expression of pain at the obscene and intense training that awaits her, eventually the pain turns into pleasure, and Emi, whose body and mind are pumped up, drinks the semen protein and obtains the strongest erotic body!