Eimi Kuromiyama, who cannot satisfy her sex with her husband. In order to satisfy her own sexual desire, she one day meets a man through a dating app on her smartphone. In that man's sex, she experiences a pleasure of vaginal orgasm that she has never felt before. But that was supposed to be a one-time mistake for Eimi. A few days later, the dating man came to her house with his friends. The men drugged her husband to sleep and let Eimi go crazy with desire, Eimi also drowned in the pleasure torture of that vaginal orgasm.