START-483 After quitting her office job to take over her family's public bathhouse, she reunites with her childhood friend, who used to be a weakling, after 18 years. They engage in vaginal-fitting sex, their desires becoming uncontrollable, and they have sweaty sex during breaks at work. - Yotsuba Kominato

Yotsuba returns to her hometown to take over her family's public bathhouse. She reunites with her childhood friend, Shuji, after 18 years, only to find that the timid boy he once was has grown into a fine young man. Their relationship quickly deepens when Shuji begins helping out at Yotsuba's family bathhouse.