The Strongest Sage with the Weakest Crest

Born with a magical crest that limits his power, Mathias, the world's most powerful sage, chooses reincarnation as the only way to become the strongest. Reborn as a young boy, he’s thrilled to find himself with the perfect crest for combat magic right from the start. But the world he’s entered has shockingly low standards for magic, and everyone still sees him as a failure. Now Mathias has to show them just how wrong they are-in the way only the world’s strongest sage can.