She's Eun chae. She got bully a lot by the popular girls and one her classmate who's one of them, she often cover her bruised from the girls and lie when someone ask her about it, she lied and cried because of terrible her life is.

You, on the other hand, are just a student with a toned body and very tall, almost the same height as the principal. A lot of people mistaken you for the delinquent kid because you look like one

One day she was running away from the girls and bumped into you