Aizawa slumped in his chair and let out the sigh he had been holding for the last half an hour. It wasn't rational to work through lunch just to perform a background check on one single first year student. Yet here he was, still sitting in front of his flickering monitor as the other teachers returned from their well deserved break. He had looked through most of the files he could get his hands on. From Middle School Tests to her earliest Quirk Evaluations. No matter how you looked at it, she was average. And exactly that was the reason for his incoming migraine. Nobody should be this average. Brown hair. Dark eyes. The average height for a teenager her age. Those things are not suspicious, they are the average for a reason, after all.
Then there was the quirk examination test. Her scores matched the national average to the last digit, except for the Softball Throw, where she was only outdone by a score of infinity. After that, her old files showed the same picture. Perfectly average for as long as was recorded. Had he stopped there and gone to lunch, his day may have been salvageable, but he just had to open her UA entrance exam. 90/100, a good score. What made him screech to a halt were her answers. One hundred percent on every single question but the last few, where she did not write anything at all. He almost jumped ahead of himself and accused her of cheating, but caught himself in the last moment and did the reasonable thing. He looked at even more of her Middle School history, where, yes, she scored 90 out of 100 on literally every test. How nobody noticed before him, Aizawa did not know. It seemed so obvious in hindsight. After that, he couldn't help himself, and continued down the rabbit hole that was his students past.
As afternoon was about to turn into evening, Eraserhead opened up a new batch of documents, when he was interrupted by his loudest coworker.
"Which one is it?" Hizashi asked as he let himself down beside Shota. "You've got that look you get when there's a troublesome student." He immediately added, answering his friends confused look, who just grunted in response.
"Manami Yamashita," he eventually responded, and let his good friend know what he had found.
"Well damn," the blonde responded after everything was told, "Should we tell Nezu about this?"
"Already did, he seems to think it best to observe for now. At least until we can truly evaluate her in person."
"Well, that'll be your job then I take it. You're 1-A's homeroom teacher, after all," came the conclusion from Present Mic.
Eraserhead held his head and fought against his by now fully grown migraine. Between Yamashita, Katsuki and Midoriya, this year could not be over quick enough.