The 9th installment of Battle Spirits unfolds in the year 2661 CE, a full ten years after the valiant efforts of Bashin Dan prevented Earth's catastrophic demise. In honor of Dan's bravery, Barone and Clackey establish a conference with the goal of fostering peace and unity between Mazoku and humans. Nonetheless, beneath the veneer of cohesion, a group of radicals known as Cardinal Sign are instigating chaos with their extreme human-centric agenda, resorting to terrorism and violent methods to gain attention. The mysterious presence of the 12 Zodiac X-Rares, which were thought to have disappeared along with Dan, adds to the general sense of uncertainty. As if all this commotion wasn't enough, the holders of the core decks sense something both recognizable and enigmatic emanating from within their cards. They happen upon a perplexing card dubbed "Clash Kings Miracle," and find themselves pondering its significance.