Choi Ban Suk (Jung Jae Young)is a veteran engineer, working as a developer in the consumer electronics division of Hanmyung Electronics. He has a calm disposition and a warm heart. He also has a sense of humor, but he faces the biggestcrisis of his 22 year working career. To avoid being caught up in a wave of dismissals, he is transferred to the personnel department. He iscompletely unfamiliar with the personnel department. He decides to survive in the personnel department and not quit this job.

Meanwhile, Dang Ja Young (Moon So Ri)is the leader of the personnel department. She was promoted to the position recently. She is a workaholic and she wants to become the company’s first female executive. Choi Ban Sukk is a new member of the personnel department. She doesn’t know what to do with him, but her lifeslowly changes by working with him.