Accountant Kim Seongryong 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 Hagyeong suspects there is something else afoot.

Seongryong 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 Seongryong for his own ends.

Seongryong has earned a new upstanding reputation by his accidental action, but his department still isn’t convinced. Hagyeong suspects the driver of being involved in something bigger but is unable to find evidence.

After being arrested, Seongryong realizes he is in over his head with TQ Group. Hagyeong learns more about the company’s corruption from Choo Namho.

Seongryong is unexpectedly brought in to deal with the company’s Chinese partners. A strike at TQ Delivery also presents a problem.

The handling of the union strike causes Chairman Park Hyeondo to order Seongryong to be fired. Yool finds out that Hagyeong and Madam Jang Yooseon are working together.

After Seongryong’s latest arrest, TQ Group tries to force him to quit. Namho convinces him to rent a room in his house.

Seongryong is as disruptive as possible while threatening to expose the company to the press. Won Giok worries about his father when the labor union protestors are arrested.

Business Operations begins work on a revival plan that has higher stakes than they expected. The higher-ups involved in illegal activity scramble to get rid of evidence.

Work continues on the revival plan down to the wire. Seongryong tracks down people to testify against TQ Delivery.

Seongryong is overcome with guilt after the failure of his plan, but his coworkers, now in new departments, stay positive while striking back at those who wronged them.

Seongryong recruits help for his revenge mission against Yool. Park Myeongseok receives a rude awakening.

While Yool goes after Director Jo Minyoung, Seongryong researches TQ Retail’s unpaid employees.

Seongryong helps rally young store employees to sue TQ Group and finding evidence of corruption. Prosecutor Kim discovers Hong Gaeun has been disobeying orders.

A traumatic experience scares Seongryong, but he vows to get revenge anyway. TQ Group’s audit approaches, so the accounting team works to cover up their fraud.

Business Operations investigates all of the company’s so-called assets. Gaeun confesses her undercover role.

TQ Group has received a major blow, but Myeongseok finds out the chairman is going to create a scapegoat to avoid consequences.

Seongryong tries to figure out how to rescue Yool from the detention center while pressuring higher-ups to confess what they know about TQ Group’s crimes.

Seongryong and his friends officially declare their intentions to take down Chairman Park, but finding evidence that cannot be covered up is tricky.