Cheng Zhaoyi and Cheng Zhaopei, twin princesses of the Southern Jin Dynasty, were separated when they were young due to a long-planned assassination. Her younger sister, Cheng Zhaoyi, fell into a lake and disappeared while trying to save her sister. Her life and death are unknown, but the mastermind behind the scenes was the Crown Prince Cheng Zhaoyou. He was bewitched by his personal maid Mu Qian and vowed to eradicate the imperial concubine line and consolidate the power of the Queen's direct line. Many years later, the Southern Jin Dynasty declined and was forced to make peace with the Xiliang Kingdom. The eldest princess Cheng Zhaopei was accused of marrying Xie Zhouxu, the third prince of Xiliang. However, on the eve of the wedding, Cheng Zhaopei discovered that his amnesiac sister had quietly returned. In order to protect her sister Zhouquan, she decided to let Cheng Zhaoyi marry into Xiliang on her behalf, while she secretly investigated the conspiracy.
As everyone knows, Xiliang Kingdom is also undercurrent. The real third prince Xie Zhouxu was executed by the old emperor for treason, and was replaced by the illegitimate son Zhou Xu who had endured for many years. He put on a mask and disguised himself as the "Third Prince", vowing to clear away the grievances of his mother's family and avenge the queen's family. And Cheng Zhaoyi stepped into Xiliang as the eldest princess, but she didn't know that she had become a key piece in the chess game...
Concept: strong woman