I don't know whether it will be Korea's Game of Thrones or not but I'm sure as hell that it's going to be at least a cut above then Game of Thrones.
I don't understand why but everyone here is only focusing the cast. Damn just look at the staff! In the Director's Chair we have Kim Won Suk, A.K.A. God among Directors and the writers are Korea's finest. They did wonders in Sageuk's like Six Flying Dragons, Deep Rooted Tree, Queen Seon Duk and Jewel in the Palace.
Director and writer combo in this drama is just unworldly. As it were Bach, Beethoven and Mozart join hands to compose the ultimate piece.