Hwan-Sa, Joon
The man who masterminded the fall of Dokgo Seong was Sa Jun-Hwan, the High Commander of Zoroaster. He had been plotting the usurpation for decades, not only to seize power in the sect, but to reign supreme in the murim by forcing the Demonists and the Nine Righteous Factions to bend their knees and submit to his rule. (Source: forum.egscans.org)