Akari was asked to help out at her family's public bathhouse, and she thought, "Only old men will come!" But it turned out to be some high school boys on their way home from club activities who came to take a bath! Akari can't stop staring at all the young dicks, and the virgin boys can't stop getting hard because of the Ke'ai of the poster girl! The boys who learned the pleasure of sex became more and more obsessed with her...!?