Class Might-A

AU. When All Might faces off against a very insane villain he ends up becoming the father of 20 babies over the course of many months. Years later all 20 of his children all get into the hero course with Nezu choosing to stick them all in the same class. Insanity is sure to follow, with 20 Half Siblings in one class, for they are the Mighty Kids! Please R&R!