Thanatos Sylvius Hilk

He is the Pontiff of Holy Hilk Kingdom, and the mastermind behind the suppression and eradication of the Elves and Beastmen, along with destruction of many Kingdoms.

He is actually a Wanderer just like Arc who had arrived in the Other World over 100 years ago, and believes that the World he is in now is a "PACC" based virtual world.