鋼の義手で逆転!~追放された最強後継者~

True heir Kai of Hale was framed and exiled. He lost his left arm to beasts. Back home, he endured family humiliation and was forced to sign a death contract for the fake heir. Marshal Ash tore the contract to save him. The impostor mutated and unleashed a beast horde. Kai defeated the monsters with his mechanical arm, saved the city. He cut ties with his toxic family, left with his grandfather, and began a new journey with Ash.