Interest Stacks

This list is dedicated to such a specific sub-genre of LN as "action magic schools". Most of these stories are about how a talented and experienced OP MC ends up in a magic school where they train martial magic skills. Initially, most of the students treat him with contempt and disrespect, as the MC is erroneously defined as a weak loser. But thanks to his experience, intelligence and skills, he proves who is the big boss here. This LN is about OP characters, so almost every work is also an action harem.

Warning: Being one of the popular escapism genres, many works overuse very similar clichés and often take themselves too seriously. Also, most of the list includes large doses of ecchi, up to a separate sub-genre of "magic schools with erotic magic".
Warning 2: The list does not include the usual anime about magical schools like Blue Exorcist, since such works are representatives of the action shonen genre and are almost always published in manga form.