Suzuki Iruma is too nice and just doesn’t know how to say no. One day, he somehow gets dragged into the netherworld where the demons live. He arrives at the great demon Sullivan’s mansion where he is asked to do the unthinkable... and ends up becoming Sullivan’s grandson! He is quickly enrolled into the Demon School Babyls where Sullivan serves as chair-demon. Iruma begins his super exciting school life at demon school while trying to conceal the fact that he’s a human!
I heard the head of the class and the 
honor student are dueling in the courtyard!
سمعتُ أنّ رئيس الفصل وطالب
!الشرف سيتنازلان في الفناء
Im Innenhof sollen der Chef
und der Stipendiat kämpfen!
¡El representante y el becado
tienen un duelo en el patio!
¡El representante y el becado
tienen un duelo en el patio!
Le surdoué et Iruma s’affrontent
dans la cour !
Ho sentito che il capoclasse 
e il migliore studente duelleranno in cortile!
Eu ouvi que o líder da sala e o aluno
de honra estão duelando no pátio!
Говорят, лучший ученик
со стипендиатом сцепились!