Jo Nam-gook

Kang Do Chang and Oh Ji Hyuk are detectives in the South Korean port city of Incheon. But they are polar opposites: While the former is a grizzled veteran of almost two decades who uses his experience and personal connections to crack cases, Oh Ji Hyuk is his foil. Instead, he is cool, calculating, and prefers to delve into criminals’ minds to look for clues. (mydramalist)

A work that deals with the cruel love story of King Yi In, who is in a political crisis, fighting for the throne, and Kang Hee-soo, a secret agent who approaches Yi In for revenge but ends up being enchanted. (imdb)