Holy Void Damargania

Holy Void Damargania (ダマルガニア) is the country ruled by Demon Lord Dagruel.

Heaven Tower
The Heaven Tower is the base of operations of Dagruel and can be considered to be the capital of Damargania.

Desert of Death
The Desert of Death (死せる砂漠) refers to the vast majority of Damargania, contaminated with Magicules from the battle of Guy and Milim.