In the world of Isoraeon, there are only two races present. Meoons and Witches. The two have been friendly with each other for the most part apart from always being given connotations of good and evil. Three centuries have passed since the inception of the world and the two races seemed to get along. Despite the differences in their way of attaining their powers, they seemed to understand that no one is really there to hurt each other. However, they (their ancestors) made a deal to never breed with one another as they have no idea of what kind of being will come out. However, two rebels dared defy this rule during the fourth century. The being that came to be was coined "The Original Sin."

At present, the story follows a sweet girl named Keira who is curious to know more about the world of Isoraeon. Using her birthday as a chance to go to the outside world, her mother, Isolfar agreed to take her to the Meoons and Witches. Unbeknownst to Keira, Isolfar is hiding something very important about her daughter. And one night, Isolfar made an ultimatum that would forever change Keira's perception of the her and the world around.