Chayoon was the president of her class. She was smart, bright, and a model student. Jonghyun was the school's bad boy. He always had bad grades, didn't care much for school or anyone else. He was called to the teacher's office along with Chayoon. When she's forced to help him study he causes her more trouble than ever? Could those two be able to work well together? Or will she give up on him.