Leon, who has taken on the title of Golden Knight 'GARO,' dedicates himself to training a young Makai Knight destined for the next era, alongside Prince Alfonso of Valiante. Soon after, they receive a directive to eliminate the world"s most exquisite Horror residing in the neighboring land of Vazelia. At that moment, a budding Makai Knight is abducted by an unknown assailant. Leon relentlessly pursues the kidnappers, only to find himself trapped by foes in a dead‑end. Suddenly, Makai Knight Dario—long presumed lost—emerges and saves him. Guided by Dario, Leon is escorted to a town where he encounters an utterly unexpected figure this unforeseen meeting sets the stage for a new alliance that could reshape their destinies forever and beyond the known.