Broken. Shattered. Lonely. Betrayed.
These were the only feelings she had left in her.
Happiness, was something she became afraid of. 
Love, was something started despise. 
Trust, was something she couldn't bear to do,
ever since that day. 

Lee Chae Lin was a cheerful adorable girl who used to love her boyfriend more than anyone. After having lost her parents at a young age, she was brought up by her old grandparents in a small town.  But after the death of her grandfather, she and her grandma had to move to Seoul and live at her uncle's house. Because of her uncle's unlimited wealth, she was admitted into one of the most prestigous high schools of Seoul, SM High. There she met a group of people who were unexpectedly really friendly on her first day of school. To make things even more suspicious, one of the flower boys of the group even asked her out. Having a simple and innocent mind, she accepted his confession and started to go out with him. And that's when the disaster happens....