Miki who saw the masturbation scene of her son's friend, Kosuke, who came to stay at home. Miki, who was tickled by the shy Kosuke, seduced him by accompanying him for dinner. Kosuke's unequaled Ji Po, which does not fit in a one-time shot, devours Miki's body many times and repeats ejaculation. - After that day, she continues to have a physical relationship with Kosuke, who visits her home many times, but Miki's body finally begins to scream at his unequaled nature.