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.
What?! Wait, that's why that 
happened with Kiriwo-senpai?!
!ماذا؟! مهلًا، لهذا حدث ذلك مع كيريو-سينباي؟
Hä?! Das wolltest du mir
damit bei Kiriwo-senpai mitteilen?!
Cosa?! Aspetta, quindi è questa
 la spiegazione dell'incidente con Kiriwo?!
Hã? Espera, foi isso que
aconteceu com o Kiriwo-senpai?
Что?! Ты мне об опасности
пытался так рассказать?!