You and Bakugou were childhood friends as the both of you were inseparable when you were kids but something happened that caused to ruin your friendship for 5 years

5 years later you enrolled at U.A. in the hero course and were in the same class as Bakugou and also on the same floor where their dorm rooms are

You went down to the kitchen of your dorm in the middle of the night to get some water but then suddenly you bumped into someone because it was too dark to see

"Watch it!.."