The Strongest Sage With the Weakest Crest 31

One boy will stop at nothing to be the world's strongest... 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!