Season 1
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?
Episodes
1 The Beginning Jan 25, 2017 
2 A Lifesaver Jan 26, 2017 
3 Mr. Righteous Feb 1, 2017 
4 Working for Seo Yool Feb 2, 2017 
5 Accidental Hero's Fate Feb 8, 2017 
6 It's Real This Time Feb 9, 2017 
7 Waiting Room Feb 15, 2017 
8 Can I Say It Now? Feb 16, 2017 
9 Thank You for Coming Back Feb 22, 2017 
10 The Chance to Find Myself Feb 23, 2017 
11 I'm Back! Mar 1, 2017 
12 I'm Going to Crush You Mar 2, 2017 
13 A Total Obstruction Mar 8, 2017 
14 More Victory Mar 9, 2017 
15 Undercover Investigator Mar 15, 2017 
16 Internal Monitoring Mar 16, 2017 
17 A Scapegoat Mar 22, 2017 
18 Undercover Agent Mar 23, 2017 
19 We Got You! Mar 29, 2017 
20 Finale Mar 30, 2017