A newlywed couple arrives at a long-established hot spring inn called "Infertility Hot Spring." Misono, the innkeeper of Nakai, warmly welcomes them and sets her sights on the couple. While his wife soaks in the hot spring, Misono subtly takes action. Feigning modesty, she tests the man's reason with lewd language and a dangerous distance, slowly penetrating his heart! Gradually, he is consumed by Misono's skillful seduction… The pure ejaculation in the guest room, the ejaculation in the hot spring, and the ejaculation during his wife's lovemaking…