Suzuki Iruma has just been abandoned and sold to a demon by his irresponsible parents! Surprisingly, the next thing he knows he's living with the demon who has adopted him as his new grandson, and has been transferred into a school in the demon world where his new "demon" grandfather works as the principal. Thus begins the cowardly Iruma-kun's extraordinary school life among the otherworldly as he faces his true self, takes on challenges, and rises to become someone great...

A Brazillian actor, voice actor, dubbing director, singer, and reciter, Mauro Ramos has been on the voice acting business since the 15th of March, 1989.
His most recognizable roles in anime are Old Joseph Joestar (Jojo's), Jet Black (Cowboy Bebop) and Alex Louis Armstrong (FullMetal Alchemist: Brotherhood).

Iruma Suzuki has always been eager to please, even at the cost of his well-being. Worst yet, he's the son of two selfish parents who end up selling him to a demon. Thanks to their totally irresponsible actions, Iruma has found himself living in the Netherworld, where he must live and attend school as the grandson of an older demon. Luckily, his new, doting grandfather is there to help, but Iruma will have to figure out how to blend in with his demonic classmates or risk getting eaten. All he needs to do is subjugate rival classmates, summon familiars, and do other typical demon things while never revealing that he's human… Piece of cake, right?

The second season of Mairimashita! Iruma-kun. 
 
Suzuki Iruma, human and deeply non-aggressive, one day becomes the grandson of the great demon Sullivan. Doted on beyond belief, Iruma starts school where "Grandpa" serves as the chair... and finds, to his surprise, that he enjoys life there with Asmodeus, Clara, and the rest of his demon classmates. But just when Iruma thought he'd fitted in, there's more trouble ahead! A ring begins to talk, and Iruma... goes bad?! Iruma's chaotic, demonic life at school continues! 
 
(Source: NHK)

The third season of Mairimashita! Iruma-kun. 
 
This time it's the jungle! 
 
Human boy Suzuki Iruma becomes "grandson" to the great demon Sullivan and begins attending demon school where "Grandpa" serves as chairman. Winning friends -- and rising in demon rank, too -- Iruma thrives in his new environment, overcoming the harrowing ordeals thrown his way! In the new season, further challenges await... it's harvest season, and time for the annual test where students wade into the expansive and extremely dangerous (!) jungle to compete for food!! Classmates become rivals, and what erupts is a gargantuan battle of brawn and wits? 
 
(Source: NHK)

David