Imagine this: a world with only one country, with many autonomous government which divides its citizens according to their kind, and separated them by high walls. Also, what I mean by "kind" are: humans, wizards, angels, vampires, werewolves, gods, and other. All residents are not allowed to leave their respective autonomous regions. Therefore, all citizens of different types also not allowed to get married or have children together. But, someone told me: "Rules are made to be broken", and sometimes we have to agree to that statement. And, without that rule, Athan's life would never be so interesting.