Ayaka, a married woman, serves as branch manager at a real estate company, known for her strict personality that tolerates no mistakes. Called the "devil boss" by her employees, she runs the company with powerful leadership. One day, a convenience store owner contacts her, reporting improper construction work. Confronting the unscrupulous contractor, Ayaka calmly leads her subordinates in taking action. The tense atmosphere and her sharp responses drive the story forward.