Welcome to Demon School! Iruma-kun Season 4

Iruma Suzuki is only 14 when his deadbeat parents sell him to a demon, which sounds horrifying until you learn the demon in question is basically the world's most doting grandpa. Iruma now lives in the Netherworld, attending Babyls School for Demons while desperately trying to hide the fact that he's human — which, in a world of demons, is basically being a walking snack. He's flanked by Asmodeus, a noble demon who's sworn undying loyalty to him after losing a fight, and Clara, who has the energy of a golden retriever that found coffee. The fourth season picks up with the Music Festival Arc, where Iruma's entire Misfit Class needs to hit Rank 4 together. That means all thirteen of them, including the ones who can barely function in normal society. The show's strength is how it builds out each classmate with their own Bloodline Magic and personal hang-ups, then finds ways to make you genuinely care when they level up. Bandai Namco Pictures keeps the animation bright and expressive, and the demon world design stays inventive without ever feeling generic. If you liked Blue Exorcist's demon school setting or the fish-out-of-water comedy in The Devil Is a Part-Timer, this scratches a similar itch but leans harder into the warmth. Fans of Rosario + Vampire's "human in monster school" setup will feel right at home too, though this one's more wholesome than horny. Three seasons in and it hasn't lost momentum — that's rare for shounen.