AU where Karina is the queen bee who's used to the school bowing at her feet, until a new girl that refuses to play by the rules comes along.
Minjeong dad (Key) enrolled her in SM Private School without knowing that school is actually where most royalty kids study. Minjeong accidentally fall in love with the School Council President without knowing she's the Crown Princess of South Korea who can only be with someone who came from a royal family too.