
Can corporate politics turn a bad person into a good person? Kim Seong-ryong is a skilled accountant who works for gangsters. He makes his way into a company called TQ Group as a middle manager in the accounting department with the intention of embezzling money from the company. As he contends with hot-shot accountant Yoon Ha-gyeong, financial prodigy Seo Yool and peppy intern Hong Ga-eun, Seong-ryong finds himself embroiled in office politics and notices other shenanigans by those in power that threaten to bring down the company. Seong-ryong slowly comes to realize that he’d rather fight against corporate corruption and fight for employees’ rights than complete the mission he originally came to do. Can he succeed at his new objective against all odds?

The Beginning
Accountant Kim Seong-ryong steals from anyone he can, including the mob, but still manages to escape prosecution. When a chief from TQ Group commits suicide and the company is investigated for fraud, employee Yoon Ha-gyeong suspects there is something else afoot.

A Lifesaver
Seong-ryong begins his new job at TQ Group but receives a chilly reception from his department. Prosecutor Seo Yool also takes a new position and plans to use Seong-ryong for his own ends.

Mr. Righteous
Seong-ryong has earned a new upstanding reputation by his accidental action, but his department still isn’t convinced. Ha-gyeong suspects the driver of being involved in something bigger but is unable to find evidence.