In a cramped, dimly lit closet, Maruta W and Maruta H, a couple bound by marriage but not by blood, grapple with their forbidden desires. Clad in her school uniform, Maruta W, a high school girl, pleads, "If you make me your family, I'll do anything." Her stepfather, Maruta H, struggles with his conscience but can't resist her innocent allure. As they engage in raw, passionate lovemaking, the line between family and lovers blurs, and they succumb to their taboo lust.