Reina has always had feelings for a senior who lives in her neighborhood, and her love for him remains unwavering even now, and she joins the company where that senior works. However, her senior has a girlfriend... His girlfriend Reina, who has feelings that have nowhere to go, is consulted by her senior about having sex with her. ``...Then why don't you practice with me?'' No matter what the reason, I'm a bunch of people who can interact closely with people I like.