Leisure, leisure - she is very leisurely.
Busy, busy - he's busy.
She, in the eyes of the teacher, is a bad person who likes to fight and make trouble.
He, an excellent student in the eyes of his teacher, likes to read and take exams.
She and he should not have crossed paths, but the god of fate brought them together.
Alas, the story of a very idle person versus a very busy person has begun!