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.
Let's run a demonathon to school!
!لنركض في ماراثون شيطانيّ إلى المدرسة
Teuflischer Marathon
¡Demomaratón hasta la escuela!
¡Demomaratón hasta la escuela!
Malrathon jusqu’à l’école !
Facciamo una Demaratona fino a scuola!
Vamos correr uma
demoratona até a escola!
У нас до школы дьяворафон!