Nao and her husband - Satoshi work at the same company, even in the same department. This month Nao has become the best employee, but her husband always comes in last. Manager Ozawa has always had his eye on Nao, and he is envious that a man like Satoshi could have such a beautiful wife. Then the opportunity came when the boss assigned a new task to Ozawa, and he handed over his current job to Nao. Under the pretense of easily supporting Nao, he moved her desk to his office. Using the threat of firing Satoshi to pressure Nao, he made her agree to wear provocative clothing when meeting with clients. After a few such encounters, he could no longer restrain himself and took Nao's body. However, the pleasure Ozawa brought to Nao made her gradually stop resisting and even actively became his mistress, lying to her husband to meet and sleep with him...