Abomination: The Uncreation.

In a world where the Codex Stone determines your worth, Janus Vane is a glitch in the system. Born into a family of elite S-Rank Predators, Janus is a disappointment. With his "stunted" frame and hair the color of a mana-deficient peasant, the Empire’s machines brand him with the lowest possible rank: F. But the machines are blind. During his registration, a horrific Rift tears open the sky, and Janus is pulled into a void where he meets something that shouldn't exist. It doesn't give him a blessing; it gives him a gift that defies the laws of human physics. It calls it Uncreation—the power to delete reality itself. Now, Janus must navigate the treacherous halls of the Military Academy as a double agent. To the Empire, he is a weakling to be used as cannon fodder in its wars against other kingdoms, other races, and other worlds. To the secret Elven resistance, he is a half-blood noble descendant with a broken Core, but a bright future. But to the monsters screaming in the Rift, he is the Pup. And he's starting to get hungry.