Ichirou, who was able to go on a trip with two mother-child pairs at the suggestion of Kana, the mother of a classmate. Ichirou, who admired Kana, who was outstandingly beautiful even in class, has a pounding heart. When they arrive at the inn, the four of them go to the hot spring, and there Ichirou thoroughly enjoys Kana's naked body, which he had longed for. Ichirou, whose excitement doesn't subside, sneaks into Kana's bed that night and attempts night sex. The two's affair is discovered by Ayano, the mother, and Ayano and Kana, who are jealous, end up fighting over Ichirou's dick... Ichirou's dick is very busy with the mothers who are full of perversion due to the travel mood.