Time Quirk Mess Up (Todoroki x Midoriya)

What would happen if a new girl shows up at UA? What would happen if her quirk was time reversal and she could hardly control it? This is a story where Todoroki is turned into a baby again! Due to the new girl and her lack of control. But what happens if young Midoriya is charged to take care of Todoroki for a week?