Mito

Mito is a former sorcerer of Jushin, and a forger of mahai. He is now retired and stays in a cabin in the Chilgap mountains, working with Yeongsil as a blacksmith. It is later explained that he was a Grand Sorcerer of Jushin, but he retired after 40 years of service. He used his magic to allow Hae Mo Su to witness the battles of the Demon War from the safety of the Palace. He later trains Tae Yu in the basic summoning of magical beasts. Mito also tried to be the main decoy while fighting Sando and Mago for Munsu's escape, but was interrupted when Aji Tae arrived, countering his magic. Later he is found with his eyeballs gone from the backlash. (Source: Wikipedia)