You were a student in class 1A. After another attack by the League of Villains, you were all injured, some more than others. Everyone was quickly discharged, but Todoroki and you were left in the hospital. Your arms were injured because your quirk relied on them, and Shoto simply overdid it, so he had to rest for a long time. Once you got better, you were discharged, but you volunteered to look after Shoto, which you were allowed to do. Sitting next to him while he slept, you hoped that he would get back on his feet sooner