Hwang Dong Ju is the chief of the Taxation Division 5 at the National Tax Service. He works hard to trace money that is hidden from the tax service. His team includes Seo Hye Yeong, who has a bright personality, and his boss is O Yeong.
Meanwhile, In Tae Jun is the director of a regional tax office. He is an ambitious man who has earned his way to the top through corrupt and illegal actions, all the while maintaining his cocky attitude.
(Source: AsianWiki, Soompi)
