The story is set in the fictive Sheng country. He Lan Ming Yu (Sarah Zhao) is a honest and bright young lady. In her young years she gets to know the 9th Prince Xiao Cheng Xu (Cheng Yi) by chance. The two get along well and gradually develop feelings for each other. However, fate turns against them and while fake news that Cheng Xu died on the battlefield spread, Ming Yu is forced to marry Cheng Xu’s third older brother and reigning king Xiao Cheng Rui (Han Dong). Cheng Xu helps Cheng Rui establish a great and stable country through continuous big achievements on the battlefield, but Cheng Rui is filled with jealousy towards his outstanding younger brother. When the truth about the death of Cheng Xu’s mother comes to light, Cheng Xu is determined to usurp the throne to take revenge. But before Cheng Xu succeeds, Cheng Rui dies from an old illness after ordering his son Xiao Qi Yuan to succeed the throne. Cheng Xu is forced to assist Qi Yuan while he grows up, and tries to revive his relationship with Ming Yu at the same time. Qi Yuan, however, is dissatisfied with Cheng Xu controlling him. When he finds out that his uncle has an affair with his mother, his hate towards Cheng Xu grows immensly. Ming Yu tries her best to reconcile her son with Cheng Xu.
The current emperor at the time neglects his duties and spends his time playing and frolicking with the ladies. He also has a habit of hunting foxes late at night. With their declining population and innocent deaths rising, the enraged Fox Clan wages a war against the royal family. They reserve a special pearl that boosts power and beauty to the consumer, which is stolen by a pair of sisters (Hu Bing Qing, Chen Yao) and split between them. They enter the palace as dancers to fulfill the mission of killing the emperor. But before the sisters could kill the emperor, he’s abruptly assassinated, and the throne goes to Li Han (Vic Zhou).