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 guess he really did make the 
head of the class his servant.
.أظنّه جعل صاحب أعلى رتبة في سنتنا خادمه فعلًا
Der Beste von uns
bedient ihn jetzt also wirklich!
Parece que de verdad
lo convirtió en su siervo.
Parece que de verdad
lo ha vuelto su siervo.
Il a donc vraiment battu
le meilleur de sa promo…
Immagino che abbia davvero asservito il Capoclasse.
Eu acho que ele transformou mesmo
o chefe de classe em seu servo.
Похоже, он и правда
сделал из лучшего слугу!