Nami and Sarara are good friends who are moms. One day, while they are having a moms' meeting, the topic turns to sex life. Sarara seems to be enjoying a fulfilling sex life with a young man she met on an app while her husband is away at work, busy with work... Nami, who thought she had nothing to do with it, also gets carried away and starts using the app, thinking "it'll be just once..." Nami is obedient to the young man she meets, and awakens to the pleasure of dominating him. And the young man is also drowning in both Kokoro and body in the married woman's seductive and sexy attacks.