Beast Emperor Grandleon, Machine Emperor Oxerio, and Vengeful Empress Celmonic have all been vanquished. Seiya and Rista venture to the sand territory to face the last of the Demon Lords forces, but are wholly unprepared for what they find. They are greeted by an alternate Ixphoria where Seiya never lost to the demon lord, and he and Tiana are living a happy life together the future that could have been