Reika is a submissive wife who sleeps with other men for her husband. Venture-company president Ikenuma treats his gorgeous, big-titted wife as proof of his success and has developed a fetish for offering her to his employees. She resists at first, but soon feels pleasure as a stranger fucks her in front of her husband. Watching her arousal ignites his jealousy and unbearable excitement. He revels in the taboo and superiority of sharing his voluptuous trophy wife with his envious subordinates.