The demons had overtaken the Plain of Corpses from the Kingdom of the Sacred Dragons. To regain that territory, the Kingdom had battled against the demons for three years before finally recovering part of the land. Countless soldiers had been sacrificed in that lengthy battle. In the end, they had no choice but to halt their military campaign temporarily so they could recoup from their losses. That bloody war had left numerous white bones. Because of the demons occupying that area, they were unable to retrieve the bodies of their men. Hundreds of thousands of corpses were piled on the plains and subjected to the elements. Flesh had been eroded to leave behind pure white bones which were then covered by dirt and sand. This was how the Plain of Corpses had gotten its name.