Leon, who has inherited the title of the Golden Knight “GARO,” is dedicated to mentoring a young Makai Knight for the future, alongside Prince Alfonso of the Valiante Kingdom. They are tasked with eliminating the most exquisite Horror in existence, located in the neighboring land of Vazelia. Meanwhile, the young Makai Knight destined for the next generation is abducted by an unknown individual. Leon frantically pursues them, only to find himself trapped by adversaries. At this critical moment, Dario, a Makai Knight who had been missing, unexpectedly appears and rescues him. Following Dario’s guidance, Leon is led to a town where he encounters a completely unforeseen individual.