A conflict on Earth between two warring races: Humans and the Bardemy. The conflict lasted for years, during which the world changed, and neither side won until they signed a truce. The conflict then shifted toward power and governance until they divided the land amidst an absence of justice and the spread of continuous racism between them. One day, a person appeared carrying the "Prison Awakening" with a mysterious past; his goal was to imprison the cards to avoid a coming evil that he saw as a major upcoming catastrophe. After succeeding in imprisoning all the cards he could reach, he woke up one day to find that he had lost his memories related to imprisoning all the cards, which meant their liberation once again. On the other hand, a person named Liakevinus (Liaki) appeared, who had obtained all the memories that he had lost.