Close mom friends Rinrin and Kana. One day, while having their usual tea party, the topic turned to sex life. Kana had met a young man through an app and seemed to be enjoying fulfilling sex, and Rinrin, who had thought such things were sleazy, was persuaded into trying the app herself with the condition of ≪just once≫… Ryu, a student she met on the app, was obedient, awakening Rinrin's sense of dominance. And Ryu too became engrossed in both mind and body by the allure and full-on advances of the married woman―.
