Sulli is a nerd girl in school and she has crush in Taemin.Taemin is a hot guys in her school because he is a 'PRINCE OF THE SCHOOL'.Taemin already has girlfriend..His girlfriend  is 'THE PRINCESS OF THE SCHOOL' and her name is Naeun.They are very romantic.Sulli decide to change her fashion.One day,she change to a pretty girl that made Taemin fall with her.Naeun very angry with her because she took Taemin from her.Taemin and Sulli start dating and Naeun want to destroy their relationship.How will they face their challenge in love???????????