Infinite Evolution: The Prodigy Beyond Limits

Labeled an "F-Rank failure" and left to die in a lethal trap, Kai Raven awakens the Infinite Evolution System, gaining the power to consume his enemies' strength to transcend his world's rigid, corrupt hierarchy. Evolving into the terrifying Primordial Arbiter, Kai systematically dismantles the elite families who discarded him, turning the very system meant to break him into the engine of his absolute dominance. — Description from novelcodex.org