|Affiliation|| Northern Ice Castle|
|Manga Debut||Chapter 15|
Dan Wu-Hyeon(단우헌) is the owner of the Northern Ice Castle. He is said to be as strong as Cheon Ma Sin Gun. He has a calm and serious appearance. However, once he met his daughter, Bu Young, he become a helpless man. And is one of the Four leader of the Neutral Forces.
Northern Ice Castle is the forces that defends the frozen lands of the north.
He always wear his fur coat and he has a beard. He has a dot on his forehead.
Calm and serious but sometime his personality can be completely opposite.
He is an acquaintance of Cheon Ma Sin Gun.
The Demon Sword ArcEdit
Duel at Hyun Bal Pa ArcEdit
Uses Ki to unleash Frozen Palm to freeze his enemies to death which Han Bi Kwang then copy after seeing it once.