Hikaru are good friends who are mothers. One day, while having a tea party as usual, the topic turned to sex life. Hikaru met a young man through an app and it seems that he is having a fulfilling sex life. Kana, who thought it was shady, also started using the app, thinking "It'll be just once". Kana is obedient and awakens to the pleasure of dominating. And the young man is also drowning in both Kokoro and body in the married woman's seductive and sexy attacks.