Manager Okae is a reliable and hardworking woman. Even though she scolds her subordinates for their mistakes, she still works overtime with them to finish their work. Today, she is going home by the last train, and her husband is already asleep, so she can't pay him any attention. She calls the managing director, with whom she is having an affair, and consoles herself with some phone sex. One day, while her subordinate is on his lunch break, she has an affair with the managing director in the office. The incident is secretly filmed by her subordinate. The subordinate shows the evidence to Manager Okae and makes her give him a blow job. The subordinate's demands continue, but...