Gadeciola

Dragon Overlord's Country Gadesiola (覇竜の国ガデイシオラ, Ha Ryū no Kuni Gadeishiora) is one of the three major powers that exist in the underground world. A mysterious country ruled by the Overlord. It is said that all faith must be abandoned in order to enter, and a person who once entered the country is never allowed to leave the country again.