My Special Ability is Growing Muscles Novel

In a world populated by humans, elves, dwarves, orcs, demons, and a demon king, warriors command elemental forces, assassins manipulate shadows, and mages bend reality itself. Kairo Vale awakens to a drastically different gift: Muscle Genesis, the ability to grow and control muscle—the weakest and most peculiar power imaginable. Orphaned and starving in the slums of Arcanum Nexus, Kairo possesses an unshakeable determination to survive and transcend his circumstances. When the prestigious Nexus Academy Entrance Tournament offers him his breakthrough opportunity, the world dismisses him as just another unranked slum dweller with a useless ability. Yet muscles grow. So does Kairo's pain tolerance, strength, and will to endure. Facing trials designed to break him, confronting nobles who despise him, and evading those who fear his potential, Kairo advances through sheer persistence and brutal effort. In a world where power dominates everything, he constructs his own strength from nothing, one rep and one punch at a time. If the system refuses him a place, he will forge one with his fists.