Kim jiyeon or bona is the most popular girl in starship high.

One day she break up with her girlfriend named son juyeon aka eunseo because she cheated on her. She has no interest with everybody else after that incident. But one day someone took her attention.

Kim Hyunjung or seola is a normal high school students. She doesn't like attention because she likes to be a normal student. One day her friend ask her to perform together and she wanted to declined. But she needs to help her friend so she wear a cap and glasses to hide her face.