At the suggestion of her classmate's mother, Kana, Ichirou was able to go on a trip with two mothers and children. Ichirou's chest, which I had longed for as a beautiful woman by far in class, throbs. When they arrive at the ryokan, the four of them go to the hot springs, where Ichirou thoroughly enjoys the long-desired nakedness of Kana. Ichirou, who can't get rid of his excitement, sneaks into the futon of the sleeping Kana that night and starts to sleep at night. The affair of the two is known to her mother, Ayano, and the jealousy Ayano and Kana are competing for Ichirou's cheeks ... Ichirou's Ji-ko was busy with her mothers who were in full bloom due to their travels.