A human stumbling into a monster school is funny because he has no business being there, and the show knows it. Moka's true form is the punchline that keeps working, a vampire who solves every problem by becoming the thing he's actually terrified of. It's dumb in the best way, the kind of show where you stop asking why the plot repeats and start waiting for it to.

Tsukune Aono stumbles into Youkai Academy by pure accident, only to discover it's a school designed exclusively for monsters. Just as he's plotting his escape, he meets Moka, a charming girl who immediately captures his attention. There's just one problem: the rosary on her chest holds back her true vampire nature, and removing it transforms her into a powerful, ruthless vampire. The academy has one strict rule: any human found on the grounds is to be put to death. That leaves Tsukune, the only weak human among a student body of monsters, trying to survive the semester while keeping his secret. Adding to the trouble, the sweet Moka has a fondness for drinking his blood. The result is a supernatural school comedy that mixes romance, fan service and fantasy as Tsukune stumbles through misadventures with a crowd of beautiful but dangerous creatures.