The Strongest Sage with the Weakest Crest 31

ONE BOY WILL STOP AT NOTHING TO BE THE WORLD’S STRONGEST…NOT EVEN FIGHTING THE MOST POWERFUL DEMON WITHOUT A PLAN!Matthias has learned that all demons were once human before they were transformed by the transcendent arts of space monsters! No sooner has Matty defeated Myrok, the envoy of a star seraph, than a meteor crashes down from space. What's worse, the power of the transcendent art within the meteor ends up reviving Gradis the Overlord Demon—a supreme-class demon who can command armies of monsters!