Gadeciola

Dragon Overlord's Country Gadeisiola (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.

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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.