I can't stop her illness, which is lung cancer. She is starting to get weaker every single day and I can't stand it anymore. The doctor says that she only has thirty days to live. So I better don't waste those thirty days. Jessica Jung, even though you'll die on the 30th day, I, Kwon Yuri, will always love you.

"Kim Taeyeon.. I-I love you..." Those were the words she said before she left me back to her sunny hometown, California. I knew that she has a boyfriend there already and she is having fun there. I feel very stupid right now because Tiffany Hwang.. I love you too.  

Tiffany, Jessica, Sunny, Hyoyeon and Seohyun are five normal students of Seoul All-Girls High. They are always bullied by the Elites, which are the queenkas of the famous school. But a rumor suddenly spreads to the whole school - which make the girls being "lovers" of the Elites. What will happen next?