When her older sister becomes pregnant and is hospitalized for tests, Sumire is asked to take care of her husband, Atsushi, during that time. However, at such an important time, she sees Atsushi walking with a woman she doesn't know. "You're a scumbag for betraying your sister!"Sumire glares at him with contempt and speaks harsh words to him, but the more Atsushi insults her, the harder his cock gets, and Sumire is violated and made to experience humiliating orgasms over and over again...