At a mansion where high-class courtesan Nao was summoned, men were deeply immersed in lavish gambling. She had been invited to entertain the mansion's owner, Ozawa. When the banquet ended, Nao stood before Ozawa, her left hand gleaming with a wedding ring. Maintaining her position as a married woman, she gradually began to stir Ozawa's emotions. Her sharp gaze and sensual body movements revealed a strong, hidden determination. Initially uninterested, Ozawa was slowly drawn in by her lewd provocations, eventually losing his heart to her. Yet, whether Nao truly knows the real purpose behind her actions, or has simply succumbed to desire, remains a question that lingers in the reader's mind until the story's end.