Problem child...

Two weeks into the first year at UA aizawa notices something strange about his problem child. He already knew that the boy was skittish and shy but the way he acts around all might is nothing short of worrying. Aizawa will do anything to help izuku even if that includes punching the number one hero in the face.

Or

All might trains izuku so hard that it is slowly breaking him and at this point the training is getting worse than endeavours abuse. All might is feeding into the fact of izuku having a quirk he could easily take from him to make sure izuku doesn't tell anyone.