Illusory Deception

In 2028, the world experienced a complete transformation from the appearance of Mana after The Cataclysm. The Mages are the new assets disputed by every countries. Their capacities putting them apart of the regular civilians giving them unchallenged authority and power. Follow Stephan, a young Korean showing exceptional gifts to magic but burdened by his useless birth element: Illusion. Will he be forced to abandon his path of becoming a combat Mage? Is the illusion element only useful for street tricks?