Lizard-like Imp. Suddenly became a student at Fundamental Paper Education. (Helluva Boss)

An owl and a Goetia-class demon. (Helluva Boss)

Asmodeus's lover. Suddenly fell into Fundamental Paper Education. (Helluva Boss)

Blitzø's adopted daughter. She's fierce, but she just struggles to express her emotions. (Helluva Boss)

Moxxie's wife. An Imp who fell into Fundamental Paper Education. (Helluva Boss)

Millie's husband. A short Imp who fell into Fundamental Paper Education.

One of the top teachers and the math teacher. She rips apart students who fail or get an F with her compass hand. She loves Oreos very much.

The science teacher. One of the top teachers. She kills students who get an F with her box-cutter hand. She is a bit shorter than the other teachers.

The English teacher. One of the top teachers. She kills students if they get an F.