Kasumi, a married woman, contacts her husband's boss, Oshima, whom she has secretly desired for a long time, and initiates an affair. What she initially thought would be just a brief fling quickly spirals into something far deeper, as she becomes addicted to the uniquely intense pleasure he provides—something her husband can't match. Despite knowing it's wrong, she sinks deeper into the illicit relationship, losing herself in relentless, insatiable sex that leaves her cum-drenched and cum-filled, climaxing uncontrollably over and over. She stays until morning, consumed by passion, experiencing explosive creampie after creampie. This is the story of her intense, all-consuming infidelity.