In Jun Dynasty, there are two young ladies in Hua's family, Ruo Lan is gentle and kind,Yu He is sweet and charming. To fulfill their father's desire and ambitious, Ruo Lan disguises herself as a man replacing his father to be soldier, whereas Yu He trains dancer aiming at entering the palace to become a mistress of the Emperor. Ruo Lan becomes comrade in arms of Prince Jun and Commander Zhu during the militairy training, they go through thick and thin together in the battles but they are lost little by little in such a complicated relationship. At the same time, Yu He enters in the power struggle in the palace, to secure the Emperor's favor and climb up the ladder to success, she has to turn herself to be greedy, evil and imperious... The story of these two sisters becomes a legend in the Chinese history.