Aunt Shizue comes to visit her sister, and her kids, her nephews Kentaro and Rumi, to reminisce about the old days in the countryside. On the day of the festival, the auntie wears a yukata with such a neckline... that, combined with her chest size, the poor kid's boyfriend has a stake all evening. Kentaru decides to "freshen up," away from his sultry aunt, and when he is released, he tries to find her. A little away from the holiday area, the kid hears a bunch of men's voices, as well as his aunt's voice. Once there, the kid sees a bunch of young guys, all "trying out" his aunt. Kantarou can't stand it and starts to "sharpen his pencil" in the bushes himself. From this moment on, he falls more and more in love with his aunt... And considering that he also has a pretty sister, he has two "enchanting beauties" in the house, who are not afraid of moral principles at all.