Doma is a demon holding the second highest position in the Twelve Kizuki, Upper Rank Two. Over a century ago, Doma held the position of Upper Rank Six, and during that tenure, he turned Gyutaro and Ume into demons and introduced them into the Twelve Kizuki. He is also the leader of the Eternal Paradise Faith, a cult dedicated to worshipping Doma and a place where he listens to all his followers' troubles and gives them advice. It also acts as a place for Doma to capture and kill humans