Maou Gakuen no Hangyakusha

So, there’s this dude named Yuuto, just your average high school kid, right? One day he finds this weird tarot card by his bed. He shows it to his folks and turns out he’s actually part demon or something. So now he’s gotta go to demon school to level up his demon skills and become the next Demon Lord. Oh, and apparently he’s gonna get a harem out of it too. Talk about a wild ride!