Yao Moxin, the Queen of the Great Chu, was murdered by a traitor in the court, but after a thunderstorm and lightning, her soul entered the body of her younger sister Yao Mowan, who was being hunted by the enemy at the moment and fell off a cliff and lost her memory at a critical moment. Yao Mowan and Ye Junqing, the Prince of the Great Chu, gradually fell in love with each other after a series of coincidences, but just when they both wanted to express their feelings to each other, Yao Mowan knew that she was Yao Moxin and that she had been assassinated by her enemies. In order to take revenge, Yao Moxin entered the palace again with the body of her younger sister Yao Mowan. When she first entered the palace, Yao Mowan found the enemy who killed her sister Moxin among several concubines, and realized the nature of Emperor Ye Hongyi, and made up her mind to take back the country for Ye Junqing. In order to take revenge, Yao Mowan successively met various infatuated and undemanding characters such as Chu Mobei and Han Jinyi, and owed countless debts of love. Yao Mowan finally fulfilled her promise, avenged her blood feud, and returned the beautiful country to her beloved Ye Junqing.