Enma Miyama(みやま閻魔; Miyama Enma) is the Mastermind and true Antagonist of the Miyama Runaways Arc in Highschool DxD: Яe-birth, despite appearing only in volume 6, the final volume for the said Arc, and the widower of Ophelia, father of Rei Miyama. A brilliant scientist turn mad, he wants to get rid of all factions of the supernatural world by using Azazel's Sacred Gear blueprints.