Following the Brave Saga, a new faction known as the Mauve emerges, co-existing with both Humans and Mazoku. Admired for their exceptional intellect and unique lavender blood, the Mauve are met with disdain from the other races who harbor concerns about their ability to destabilize the existing world order. Galette Revolt, a young Mauve who has experienced discrimination firsthand, sets out on a mission to bring all races together by playing the game Battle Spirits. Nevertheless, rival groups from each race have their own agendas, some focused on peace while others seek more sinister objectives.