Recently, Yuna has been feeling depressed because she suspects her husband of cheating. One day, she is raped by a worker who came to repair the drainage pipes. However, Yuna, who is lonely because her husband doesn't pay her any attention, gets pleasure from the strong stimulation of another man's penis. At that time, her husband's colleague, Oki, comes to stay. Yuna, touched by Oki's kindness that her husband doesn't have, wants to have instant sex again, giving in to her desire and twisting his penis into her pussy...