Flame Anomaly: the heat

Soraxia, a world of magic. With humans at the apex until the invasion of the Knolls, an alien species with powerful technology. Now the humans are fighting to regain control of their world.
Oscar Lane, a human boy and heir to a Ducal house showed prospects of being the strongest mage. Being capable of flame magic even without awakening his core, which was improbable. He was envied and revered until the day of his actual awakening, where he was declared to have a defective mana core and no potential for growth.
Devastated but not losing hope, he sought to change his fate with his own hands. Setting a goal and attempting to achieve the impossible.