Which Korean drama is Su Jiu?

Su Jiu is a character of Su Jiu-Er in the Korean drama "Monsters List".

Sue is a character and one of the heroines in the cartoon "Monsters List". She has a beautiful appearance and gentle (arrogant) personality, and is the flower of Fengxi School. Su Jiu's real identity is Su Daji, a fox demon. He has extremely powerful power.