Dying in his old life only to be reborn as the newborn Prince Reinhardt, the boy is abandoned by the royal family when their measuring tools register his magic as too weak to matter, when in truth his power runs so far off the charts that the equipment cannot read it at all. Taken in instead by the Zenfis family, who name him Haruto, he spends years quietly mastering an overwhelming barrier magic while letting everyone around him believe he is still the harmless failure he was pronounced at birth.