Welcome to Demon School! Iruma-kun 7

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

Introducing Irumean

After Iruma makes an offhand comment about wanting to understand demons better, his trusty magical ring casts a sneaky spell to make it easier. The only problem? It's turned the normally happy-go-(un)lucky Iruma into the devilishly dark Irumean! This spicy Iruma soon stirs up the Misfit Class and leads them into a crusade to claim the biggest prize on campus- the lost Demon King's personal classroom, the Royal One!