Today is a busy day for Mao Saito and his male colleague. Because they have not completed the assigned work, they both have to work overtime to stay at the company. Suffering from poor pressure coupled with the stifling atmosphere in the office, Saito had to go outside to relieve the tension. Feeling that it wasn't enough, she began to relieve her emotions by masturbating without knowing that her male colleague was secretly peeking at her movements. After a long time, he was also discovered, but instead of scolding or showing shyness, this lewd colleague suddenly invited him in to help and relieve his boundless sexual needs.