Like my close mom friend Rinko. One day, when she was having her usual tea party, the topic turned to her sex life. Kana seems to be having fulfilling sex with a young man she met on an app, and Rinko, who thought she was being suspicious, decides to use the app just once... Ririko awakens to the pleasure of being obedient to Ryu, a student she met through an app, and dominating him.