Welcome to Demon School! Iruma-kun 1

Welcome to Demon School, Iruma-kun is really fun... It never loses its central heart and manages to blend humor and more serious plotlines smoothly....a nice attention to detail in both art and story, and plenty of laugh-out-loud moments, this is a comedy that's worth your time.
- Anime News Network

Welcome to Demon School

Hopeless pushover Iruma Suzuki has found himself in a devil of a predicament... His trashy parents have sold off his soul, and he now has to live and attend school in the Netherworld. But with his unique survival skills and doting demon grandfather's support, Iruma will surely make it through this hellish experience. He'll just need to subjugate rival classmates, summon familiars, and more, all while never revealing that he's human... Easy as aleph, bet, gimel, right?