She disguised herself as a man and concealed her life experience, just to save her father...
She was always careful not to let anyone discover her secrets, but the more mysterious she was, the more he aroused his curiosity.
In order to repay her life-saving grace when she was a child, she came to him and wanted to help him get out of trouble, but she didn't expect that he was the benefactor's brother - a king who would rule the world in the future!
She can't be with any of them because she bears the hatred of her country and her family, as well as the secret about the whereabouts of the missing jade seal...