A secret that a capable female employee cannot tell anyone... She exposes herself alone in the office to satisfy her sexual desires. In reality, she wants to be found by someone... but if she is found out to be doing that at work... she burns with this immoral pleasure every day. However, she is found in this state by a senior employee. Having seen through her masochistic sexual tendencies, the female employee begins to receive in-office training from her senior employee from that day on... Sex in the office during overtime becomes the norm, and eventually she is sexually trained even during work hours... She climaxes while looking at her colleagues at work, and the perverted nature of the capable female employee is exposed...