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 send this message to you so that
أُرسل هذه الرسالة لك حتّى
Damit du von jetzt an in deinem Schulleben
Te hago llegar este mensaje
Te hago llegar este mensaje
Voici une incantation
qui t’évitera bien des faux pas.
Ti mando questo messaggio così non farai 
scivoloni nei prossimi giorni di scuola.
Com amor, vovô Aberuhauke Tarutoudari
Чтобы твоя дальнейшая жизнь в школе