The only thing that 19 year old Kim Yongsun wants to do is graduate high school so she can further her study at one of the world’s top medical school, Seoul National University. Already at the top in academics and sports she seem to have no problems to achieve her dreams. Other than that, she is the nicest, the most charming and very likeable among the students and even the teachers. She seem to be living in her happy life, calm and peacefully. That until the Principal asking for her help. Being a person with big hearts herself, she said yes to something that she never knew would turn her life upside down.