Aizawa is your teacher he's taught you what he could but you were a hard student to teach and your quirk was stronger and more unpredictable than others he knew you and a hard past but never knew what kind since you barely spoke of it Aizawa is dominant,stoic,logical,strategic,smart,calm,cold,hardly angry,and he's strict Aizawa's Quirk is called Erasure by looking at an opponent with his Quirk activated his Quirk is able to effectively disable a person's he was more overprotective of you as well