Leon survives as an illegitimate outcast in a haughty ducal manor, enduring endless spite from his noble father and arrogant half-siblings. To secure medical care and royal protection for his frail, mistreated mother, he registers for the ruthless holy knight trials, where aristocratic contenders ridicule his bloodline and cheap equipment.
When his sadistic relatives attempt to cripple him in the tournament arena, Leon unseals the runic iron armband that throttles his true capacity. Golden lightning tears through the colosseum, revealing his secret heritage as the chosen disciple of the supreme deity. Standing as the authentic sovereign heir, Leon turns the tournament into a reckoning for the noble house that scorned him.
