Meguri and Hibiki are good friends who are mothers. One day, while having a tea party as usual, the topic turned to sex life. Hibiki met a young man through an app and seems to be having a fulfilling sex life. Meguri was wary at first, but she was swept away and started using the app, thinking "just to try it out". The student she met through the app was obedient, and Meguri discovered the pleasure of dominating. The young man was also drowning in the married woman's seductiveness and her full-blown sex appeal.