Kasumi, who is a practicing doctor, and her husband, who runs a restaurant, are both busy and live lives that are far apart. Before she knew it, they rarely ate together, they hadn't slept in the same bed for several years, and she can't even remember the last time she had sex with her husband. Wanting to be treated like a woman once in a while, she spends a realistic and lewd time with a man she met on an adultery site.