Amber was a 2nd year student in her high school, Amber falls for Key who is her sunbae but unfortunately Key had fallen for Seohyun , the most prettiest girl in their school, for quite a long time since they're still kid.. But Seo Hyun fell for Minho..

Amber always there, wherever Key goes and he always got annoyed to her.. He knew that Amber like him but his heart was only set for Seohyun, well.. At least that's what he thought.. All of sudden, Amber found out that their love story was like a rectangle shape.. Is it worse than a triangle love? Will she accomplish her 'mission' to steal Key's heart?

Kim Ki Bum, but goes by 'Key'                                           Amber Josephine Liu

  - 3rd year student                                                            - 2nd year student

- Vise president of the basketball                                  - Migrated from L.A to Korea

- Cold-hearted, well to be                                                 - Sometimes shameless,

   truth he just want to look                                              moreover if it's relate to Key 

  tough and cool in front of all

   the people                                         

- Likes Seohyun                                                                                       

Choi Min Ho                                                                                 Seo Joo Hyun

  - Basketball club's president                                               - 3rd year student