*The Rules of Beloved Byun Baekhyun

Byun Baekhyun, a sophomore of Seoul Boys High School. He is known as the biggest prankster. But when one of his pranks gets him into huge trouble, he is then accidentally transferred to one of the top schools, Royal High, where Yuna studies. Yuna was supposed to guide the original Baekhyun, Kim Baekhyun, but with these two boys switched, Yuna has to suffer under Byun Baekhyun’s rules as she helps him throughout school.

*Characters

Lee Yuna:
She was assigned from the principal to guide Kim Baekhyun. But unexpectingly, the schools had made a mistake and switched Kim Baekhyun with Byun Baekhyun. Now, Yuna has to live up to Byun Baekhyun and his 'rules'. Sometimes his rules would go out of hand. This creates hatred between the two.

Byun Baekhyun:
He used to go to Seoul Boys High School, until one of his pranks got him into so much trouble, he had to switch schools and was unintentionally transferred to Royal High. However, Baekhyun had been denying the fact that it was him who pulled the prank, but because of the privileges he had in Royal High, he decided to keep quiet about his identity.