Vagabond

Vagabond tells the story of an ordinary man named Cha Gun (Lee Seung Gi) who was involved in an investigation into an airplane accident that spread in a state corruption case. Cha Geun is portrayed as an agile man and confident with the title of professional black belt in various branches of martial arts. Cha Geun was involved in the unexpected plane crash and discovered the truth of a big conspiracy behind a plane crash.

His main opponent, Bae Suzy holds the role of the National Intelligence Service (NIS) agent named Go Hae Ri. He worked hard after the departure of his father to support his mother and sister. Initially, Go Hae Ri wanted a position as a white agent working with an open identity in NIS. Unfortunately, he actually got a position as a black agent alias spy and had to hide his true identity.