Authors Note: Ok I wanted to do something more with Aizawa. Cause he loves his kids but he'll never say it aloud. This one's kinda short. I own nothing.

Twitches

It doesn't take him long to notice it. It never really does. Everyone has their twitches, things they do and don't even notice. He's seen hundreds in his years as a teacher. Some are more visible than others. Iida fixes his glasses when he nervous. Uraraka keeps one finger off of things she holds, so she doesn't accidentally make them float. Todoroki doesn't like hot tea, he always gets cold or waits for it to cool to the point most wouldn't drink it. Bakugou explodes when he feels threatened. Others are smaller. Ojiro's tail twitches like he's trying to keep it from wagging when he talks to Hagakure. The invisible girl herself taps her pen when she's thinking. Kirishima chews his fingernails. Kaminari chews on charger cables. Koda chews on pencils when he doesn't know the answer to something. Sato folds candy wrappers to keep his hands busy. Sometimes Yaoyarozu's lips move when she's reading. Jiro fiddles with her earphone jacks, all the time. Aoyama fiddles with the buttons on his jacket when he's nervous. They all have something that tells him what they are feeling and probably the most easily read of all of them is the problem child.

Izumi Midoriya might as well be an open book. Her mumbling is the first tick he noticed, the first one everyone she meets notices. Then her insecurities and need to hide her face in her hands. But it's the smaller things he's been putting together that are a bit concerning. He's sure that All Might would have noticed. He'd have to be blind not to see it. She flinches when people get too loud. When Bakugou gets a bit too rough outside of training and lets explosions off in class she flinches. When the class gets too rowdy she shrinks. They're minute tells and the flinching is getting better as she becomes more comfortable with her quirk and the fact that she no longer has to take the abuse he's sure she's used to. But they are all the signs of someone who's been abused and looked over for others, ignored even when in distress.

He knows it's because of the fact that she was quirkless before coming to UA. He is glad he and All Might are friends and that Toshinori trusts him with the secret behind the problem child because if he hadn't Aizawa would have assumed that Izumi Midoriya came from an abusive family and would have made every step to get her under the full care of UA. It wouldn't be the first time he'd pulled something like that. But the teachers knew better than to spread that sort of thing to the students. Aizawa had a reputation after all.

He did look into her home life briefly after she broke her arm during training. Her mother was her only listed emergency contact, which was a bit unusual for a hero course student. But it wasn't unheard of. If he was honest he had looked to satisfy his own curiosity. According to her file she'd gone to the same middle school as Bakugou which tracked. They'd clearly known each other before UA. Bakugou had something against her but she just wanted to live and let live with him as far as Aizawa could tell. But something else interested him. Even at her middle school she'd only had one emergency contact listed, her mother. He dug a bit deeper, just to satisfy his own curiosity. It wasn't until he hit her preschool records that he found a second contact. Hisashi Midoriya, clearly her father but why wasn't he on her records anymore. He shook himself, it wasn't really his business. But the bullying, that was his business. If it had continued here Bakugou would be out on his ear, and he seemed to know it. The kind that was responsible for the twitching hadn't continued but maybe the problem child could have a few more opportunities to beat him down every now and then. He made a note in his syllabus and moved on.