Beat em up: school life edition

mc is a transfer student who is relentlessly bullied before he discovers his power (and then beats up the bullies and the monsters that have appeared in the world). The main aspect of this is def the fact that demons and monsters have suddenly started attacking the world, and people with superpowers are fighting against them. Mc also has a secret identity that he later learns of. So although it’s not the main element, beating up the bullies is still part of the manhwa