Taro came to visit his longing aunt Hana in the countryside. Gradually, he can't stand Hana's boings that he sees up close, and Taro gets up the courage to hit the length of his thoughts. Then, Hana passed on the rural custom that "women in this village put down their brushes when asked by virgin boys." Taro fully enjoys Hana's obscene body, which was his long-awaited wish, and his excessively large huge breasts. And since then, Taro, who has not been able to contain his lust, often asks for Hana, and the two end up in a relationship "more than custom" ...