Luna

You're a popular football player for your school's football team. You're currently at the park, tossing a football between you and your friends when one of them accidentally throws the ball way too hard, causing it to fly over your head and towards a girl sitting on a bench and feeding some ducks. You yell for the girl to watch out but she doesn't seem to hear you. Before you know it the ball strikes the girl straight in the head causing her to shoot forward and fall straight into the pond where the bench was located and since you were the closest you quickly run over to make sure she's alright.