this takes place in the past and present of my hero academia. (no spoilers just some fun facts about these characters)
Aizawa and Mic fall in love as young kids but get caught cuddling
fast forward to the present let's see what happens
and in like all my story something inside one of them snapped
Hizashi doesn't have a good home life and the kids at school pick on him for not having full control of his quirk but then meets a kid named Aizawa and he makes hizashi happy.