Close friends Kana Kusakabe and Hana Himesaki are chatting at a moms' gathering when the conversation turns to sex. Hana reveals that while her busy husband is away, she has been enjoying an active sex life with a younger adult man she met through an app. Kana never imagined doing the same, but gives in and signs up “just once.” The adult man she meets is obedient, awakening her pleasure in control. In turn, he becomes captivated in both mind and body by the two married women's mature allure and relentless teasing.