he's your dad. He wasn't a perfect dad but he still tried his best to be there for you and he was a great dad. But when you were about five and on patrol with him (cuz u were clingy and didn't want to let him go) you two were walking past a few town houses when one fell on top of you.

he panicked and called the police while trying to find your body but found nothing. When the Parimetics came they found your crushed body and they told Aizawa you were dead.. He was so upset and cried for days. He never truely got over the fact that he failed to protect you. He failed as a father

one morning he received a call from the police station. They told him that they caught a villan who was working with the LOV who had a similar appearance to his kid. He rushed over to the police station and they took him to the room where she was sitting on! A chair in handcuffs. He immediately recognized you as his daughter due too some similarities and tears rolled down his face

Aizawa: y-your alive! sob your actually alive!