Minami was asked to help out at the public bath run by her family. 'It's probably just old guys who come here,' she thought, but then... the ones who came in to bathe were boys from an all-boys school returning from club activities! Minami couldn't calm down after seeing so many young penises, and the virgin boys were constantly aroused by the cuteness of the signboard girl. The boys, having been taught the pleasures of H, became increasingly infatuated with her...!?
