The Empire of Yang was founded 21 years after the Cataclysm War(ACW) between mortals and Hell, and it has reigned supreme for 804 glorious years since then. The main capitol of the country is home to mostly humans, and a shelter to many Red and Blue Oni. The humans and Red Oni reside in the Royal half of the capitol, where they live tastefully, while the Blue Oni are kept in the slums, and live in poverty. Most of the Red Oni and Humans in Yang consider the Blue Oni inferior to them, and purposefully subjugate them to poor conditions in the slums.