DASD-440 The allure of Nishino Sho's huge buttocks at the gym, a married woman and fitness instructor.

Sho Nishino starts going to the gym to address his lack of exercise. The muscle trainer there possesses a sexual desire that her husband can't sense. Unconsciously, Sho, wearing tight pants, seduces men with his impressively large buttocks. The men invite Sho towards the surging pheromones.