Iruma Suzuki arrives at the mansion of the great demon Sullivan, who then proceeds to adopt him as his grandson and enrolls him at Babyls School for Demons.

Iruma and Asmodeus encounter a rather strange girl named Valac Clara; Iruma becomes closer to both Asmodeus and Clara.

Iruma, Asmodeus, and Clara end up in the Misfit Class, which, as the name suggests, is full of misfits.

Iruma is still doing everything he can to not stand out at school, but an incident occurs in class involving the Gluttonous Feeder ring.