Madonna's exclusive big-tits 4-way dream cast! After deciding to go on a 2-night 3-day hot springs trip for the neighborhood association event, Haneda heads to the meeting point and finds that only Yumi Kazama, Yuna Shina, Aya Ueha, and Meari Tachibana have arrived, while their husbands couldn't make it. Confused, Haneda relaxes at the inn alone but is soon overwhelmed by the insatiable housewives, leading to a non-stop milking 2-night 3-day adult school trip!