Took the 12-year old main character a second and a half to beat a demon with ten times his magical power. Also he’s a reincarnated mage or some shit attending a boarding school. Also the rival school (and probably the government tbf) have been infiltrated by demons who are trying to make sure humans are as weak as possible (to take over the world? as revenge for the main character’s past life nearly driving them to extinction? just for shits and giggles?). If this sounds familiar, don’t worry; you’ve definitely seen this show before, and can safely skip its reskinned clone.