Hurt

This a attack on Titan high school au Armins father was not very good to him and he had the marks to prove it, Mikasa noticed the signs, his limp or when he has to sit closer so he could see the board and the dark long clothes, She's never talked about it with anyone but one day her and Armin get paired up for a class project and they become quick friends (high school au where Armin, Mikasa and Eren have never met, trigger warning for abuse