Former Tao master who became the malevolent Arahan centuries ago. Imprisoned underground, he survives on dark Qi, hunts down the remaining masters to reclaim the world-ruling key, and serves as the primary antagonist until his defeat.
Once fellow masters, they are now bitter enemies due to Heuk-woon's corruption.
Mu-woon is a direct target and victim of Heuk-woon's violent hunt.
The central heroic conflict driving the film's climax.
Explore the full interactive character relationship map of Arahan