Kasumi reaches out to her husband's boss, Oshima, whom she's had her eye on for a while, inviting him into an affair... What was supposed to be a quick taste turns into an obsession as she gets lost in Oshima's relentless cock, which never goes limp no matter how many times he climaxes. Even though she knows it's wrong, she gets so caught up in the passion that she stays out all night, indulging in intense sex until she orgasms to the point of death in this incredibly intense act of adultery!