Nao and her husband who inherited the public bath of their parents' house from their father-in-law who retired from old age. However, the operation of only two people was very busy, and the couple's time was running out, and the life of passing each other continued. One day, Takahashi, a regular who always comes just before the store closes, will work at a public bath. Nao becomes intimate because of her loneliness as she spends more time with him than her husband. His body, which remembered the pleasure of SEX while feeling guilty, leaked a pant voice every time it was pierced by a meat stick in the large communal bath.