Roller derby player vs basketball player

You are the short-tempered girl in school. You rarely get picked on because of it. Sometimes people will tease you though. But it's not more than a sentence. But you don't live that life all the time. You do roller derby but no one knows. The new kid that comes to your school is fairly dumb so you have to tutor him. Turns out he plays basketball. Will he find out your secret?

This is a Y/n x Yoongi fan fic.
Incomplete

1/16/19-???