Decades ago, a young Makai Knight named Barago lost his family to Horrors and wanted more power (shown in Kiba Side Story). Through his journey, he trained under Taiga Saejima, Golden Knight Garo. However, Barago's desire for power was great and was lured by the promise of greater power from Messiah, the Mother of all Horrors. A dark bargain was made: Barago will become Dark Knight Kiba, devour 1,000 horrors, and merge with Messiah to become a supreme being. Taiga attempted to save him but Barago went after Kouga (Taiga's son) and Taiga died protecting him. Leaving him an orphan, Kouga vowed to become stronger and succeed as the next Garo.