Yinyin is a woman with the mind of a child and a member of the Yue division of Black Feather, one of the most powerful organizations in the martial world. The leader of Black Feather drives her away under the pretext of disbanding the organization. From then on, Yinyin makes earning one million taels to reopen Black Feather her life's goal. At the Drunken Fragrance Pavilion, she happens to encounter the Third Prince, Jun Lin, whose head carries a bounty of 100,000 taels. From then on, Jun Lin tricks her into becoming his personal shadow guard. Jun Lin, a seemingly benevolent prince who never shows his emotions, is constantly driven to inward frustration by Yinyin.