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!
You're such a good boy, Iruma.
You always do what we say.
.يا لك من فتى مطيع يا إيروما
.دائمًا ما تقوم بما نطلبه منك
Du bist wirklich ein artiges Kind.
Hörst auf alles, was man dir sagt.
Eres muy bueno, Iruma.
Siempre haces lo que decimos.
Eres muy bueno, Iruma.
Siempre haces lo que decimos.
T’es un bon garçon,
tu fais bien tout ce qu’on te dit.
Sei proprio un bravo ragazzo, Iruma.
Fai sempre quello che ti chiediamo.
Você é um bom menino, Iruma.
Você sempre faz o que pedimos.
Ты замечательный мальчик! 
Всегда нас слушаешься.