Eleven years into marriage, Mari is a soothing mother raising two children, deeply bonded with her family and living a happy domestic life. However, after previously suspecting her husband of infidelity, she developed a traumatic fixation, leading her to crave other men's penises. Maintaining a composed demeanor, she transforms into a dopamine-seeking nymphomaniac. Unable to resist men's advances, she surrenders completely to overwhelming pleasure. Eagerly accepting creampie after creampie, she engages in extreme acts such as semen-coated masturbation and soaking her underwear with cum. Eventually, she lets semen soak into her wedding ring, descending entirely into depravity.