A mansion where men indulge in expensive gambling. A woman comes there. Her name is "Nao". A high-class prostitute is called to entertain Ozawa, the owner of this mansion. After the party ends, Nao walks up to Ozawa, who is left alone with a ring on his left hand. The woman is married. Ozawa does not show any interest in such a woman, but gradually his body and mind are captivated by the sharp eyes and obscene provocations emitted from Nao's erotic body. Without knowing that it is a woman's "revenge scenario".