Due to very bizarre circumstances, the human boy, Suzuki Iruma, ends up in the netherworld. He is keeping the fact that he is human a secret and attends the Demon School Babyls. Because he is human, he cannot use magic so he had been using the Gluttonous Feeder Ring to get by in school. But then one day, the ring started to speak! Why, though? Iruma then meets the incarnation of the ring who calls themselves Alicred, AKA Ali-san.
Because Iruma is a mere human being, 
he has no magical powers
لأنّ إيروما مجرّد إنسان عاديّ، فهو لا يملك أيّ قوى سحريّة
Da Iruma ein normaler Mensch ist,
Iruma es humano,
Iruma es humano,
Iruma n’étant qu’un humain,
Visto che Iruma è un comune essere umano, 
non ha poteri magici,
Como o Iruma é apenas um humano
normal, ele não tem poder mágico.
Ирума — обычный человек.