One of the Great Sage, Siloa's apprentises along with Hein and Reina. In his early life he along with Hein, Reina, Sieg, and Aria saved the world from falling into imbalance and ripping it self apart. Following that Siloa noticed the three's talents in magic and took them under her wing. Hein would show more promise and was chosen as Siloa's successor. Arius disappeared in disgust and was never seen again, until five thousand years before "Terraforme". He reappeared in Arcana Demonia and became a politician. Arius was widely popular and was elected head of the Order of Nine Angels. With his new found power, Arius rallied his people to conquer the world, but the rest of Terra which was in its developing stages did not like this intrusion and went to war with the most powerful force in the world.