In the beginnings, the Realm of Oni and Dragons was inhabited by Oni, demon-like creatures with the power of Destruction, and Dragons, majestic creatures with the power of Creation. Being sheer opposites, the two sides hated each other, causing chaos and war in the Realm of Oni and Dragons. One day, a child born of both worlds approached them both to end their war because he understood both sides, however, they each wanted the child as their own, so they fought harder.