The King Selection Ceremony of the Sword in the Stone of Camelot has begun, and no knight in the city can shake the sword in the slightest. Only the eldest prince, Flagg, was absent from the ceremony, which completely flustered Merlin, who was strategizing. Ten years ago, a posthumous edict changed the name of Arthur. The return of the eldest son who had been dormant for a long time will finally set off the ultimate game for the throne.