Azazel Henri is a demon hero of the 13 Crowns. He's the Security Chief of Demon Border Control and the father of Azazel Ameri.
Henri takes his work seriously as chief of the Border Control by catching any Demons who break the law in the Demon World such as he questioned Lord Sullivan about him going to the Human World and abducting a Human.
Henri is also a loving father to his daughter, Ameri, teaching her about what is like catching bad guys, and not just Demons, even Humans that exist when she was little. Years later, he becomes very protective of his daughter, so much so that the mere thought of Ameri and Iruma spending time alone talking about romantic stuff is enough to make him dizzy. When he mistakes the two for already being in a relationship, he becomes very defensive. He warns Ameri not to associate with Iruma, though it doesn't seem to stop her from seeing him.
Like his daughter, Henri also has the habit of squishing Iruma's face with his hands.
(Source: Mairimashita! Iruma-kun Wiki)