[DeepL Translation - needs review] Introduction to Volume 1: A world overrun by demons. Ars Regin, a genius magician, expires his military service with overwhelming achievements and applies for retirement at the age of 16. However, due to his ability as a "single mage," the pinnacle of the more than 100,000 mages in the world, after some twists and turns, he decides to hide his identity and attend a magic academy to train his successor. The heroic tale of Ars, who also defeats demons in the ...
