Long ago an ancient demon known as Yami no Bakura reigned over the souls known as mortals. His control lasted until the Great War of the Ancients took his first life. since this was his only option, he cast himself into a newborn child. The child conceived was named Kurai Ko, The Dark Child.
Many years past, as the boy slowly developed lycan mannerisms, later becoming a vampire as well, the first of his kind. After the death of his guardians he was adopted into the family known as Odjin. From this moment on, Kurai developed many powers, much like his new father, Overlord Kurashi Odjin, who was already a master of these powers.
Kurai developed many strange and powerful skills that allowed him to be a force unlike any other. Kurai later became the vessel for many forms, most prominently his Fire form, Rin, his Ice form, Yukki, his vampire form, Stallion, and his reaper form, whom he named Yami, after his late father. These forms all have their own persona, and have completely devoured his former self, the innocent "Human".
Kurai has ascended to the title Demi-god, as he can choose to kill a form's prominence in exchange of his own life. The most note worthy forms being Demon, Werewolf, Earth, and Water.