Cyber Devour: Rise Against the System

Ash, a scavenger from the lowest slum, awakens the Infinite Devour System on the verge of death, allowing him to upgrade by consuming enemy cores. Aided by rogue heiress Luna, he fights his way from the underground arena straight to the Apex Tower. Facing corporate elites with advanced armors, Ash uses brutal melee slashes to shatter their defenses, devouring cores to evolve his weapon. He eventually shatters class barriers, destroys the false god Architect who cloned him, and becomes the new ruler.