A married woman named Kanana and her friend Yuri are enjoying tea together when they start talking about sex. Yuri reveals that she has been having fulfilling sexual experiences with someone she met through an app. Intrigued by her friend's openness, shy Kanana decides to try out the same app under the guise of finding material for her erotic novels. She meets a young student named Taichi, who is submissive and genuine. As Kanana begins to explore relationships with younger men, she discovers newfound pleasure in dominating them. However, different recording methods may result in varying contents depending on the distribution method.