Sixteen races, including the forest spirits, dwarves, humans, and beastfolk, live together on the continent of Mysteriodas. They are independent of one another, yet often in conflict. Each race has its own unique attributes. The beastfolk's special attribute is their Bloodbane ability.
Under the rule of the Asteria imperial family, the beastfolk enjoyed more than three hundred years of peace and stability. But this dream was finally shattered by the rebellion of a civilian armed group called [Overlord Moon]. The rebellion of [Overlord Moon] not only shook the feudal rule of the Asteria imperial family, but also completely changed those who had once meekly accepted their lot, enduring humiliation without resistance.