Mizuki, a serious married office lady, hates her boss, Haneda, who is the son of an executive at a large company, is bossy, and has a vulgar personality that makes sexual harassment commonplace. However, Haneda wants to possess Mizuki, so he sneaks into an empty office late at night, manipulates Mizuki's PC without permission, and intentionally causes mistakes. Using the idea of helping Mizuki, he presses her for an extramarital affair! Late at night in the office during overtime,