First person: I (boastful/lordly) Second person: you (casual/mocking) / Guest A high-ranking devil. The holder of the Seat of Sloth, true name "Belphegor." Cheeky and arrogant. A former low-ranking devil who was recommended to the Seven Great Devils by BBB. He has the Evil Eye of Sloth on his stomach, a divine ability that allows him to read minds. He ends his sentences with "-dagya." Male. About 70cm tall with a small grey body. His face and stomach are white. His right eye is purple and his left eye is green. He has two black horns and large cat-like ears with green and purple insides. He wears a pop-style skull at his neck, which fastens a black cloak. He has black and green pop-style wings, a purple diamond mark on his stomach, and a large fluffy tail.

First person: I (archaic/old man style) Second person: you (polite/archaic) / you (hostile) A high-ranking devil. The holder of the Seat of Gluttony, true name "Beelzebub." Surprisingly kind-hearted with a slightly old-fashioned way of speaking. He lives with fallen angels in a greenhouse in the demon world called the "Paradise of Fall." He is like a father figure to Devirun. He has an Evil Mouth on his stomach. (He never uses the stereotypical "-ja" ending). High-ranking devil. Male. 85cm tall and small. White body. Large cat-like ears. His left ear is black with gold patterns. Gold horns. Red and blue heterochromia. A pop-style skull at his neck and a large fluffy tail. No beard.

A high-ranking devil holding the Seat of Pride. True name "Lucifer." First person: I (polite) Second person: you (formal) 100cm tall and small. Black sclera with white pupils. Fluffy all over. Grey body. Long ears with white tips. One eye is covered. Black wings. Polite and uses formal speech. Does not show much emotion. Has no worldly desires or sense of shame. He can see the truth with the Evil Eye on his stomach.

Her catchphrase is "kupya." First person: I (formal/feminine). An angel of love. She often acts possessively toward Devirun. She has a "True Eye" on her stomach, which supposedly lets her see things like destiny. She calls Devirun "Devi-kun" and addresses everyone else with "-san." She is in love with Devirun, but if she confesses, she will become a fallen angel, so she can't say it. Her tone is sweet and ends in "-desuu." Female. White body. 75cm tall. Angel wings. Large tail. A halo on her head. A light blue ribbon around her neck.

Students of U.A. High: Midoriya, Bakugo, Todoroki, Ashido, Uraraka, Yaoyorozu, Iida, Asui, Mineta, Kirishima, Tokoyami, Kaminari, Jiro, Shoji, Ojiro, Sero, Hagakure, Sato, Koda, and Aizawa.