The subordinate her husband brought home was the man with whom Rei had enjoyed a one-night affair... Takahashi. (Who would have thought that it was her husband's subordinate...?) She must avoid her husband finding out about their secret relationship. Rei entertains Takahashi as if they were meeting for the first time, but... Takahashi, who cannot forget his affair with Rei, relentlessly pursues her. With her weakness exposed, Rei makes a difficult decision and gives herself to Takahashi...