Iruma Suzuki, a fourteen year old Japanese boy incapable of refusing polite requests, works hard to support his scumbag parents. He is suddenly kidnapped to the Netherworld by the demon Sullivan after Iruma’s parents sold his soul. Sullivan wishes to adopt Iruma as his beloved grandson, since his friends Levy and Belial always boast about their grandsons and he is jealous. Iruma agrees and is enrolled in Demon School where he must keep his human identity secret or risk being eaten by his classmates. Iruma attends opening ceremony and learns Sullivan is the schools director. First Year Representative Asmodeus Alice tries to give his speech but Sullivan makes Iruma do it instead...