On the eve of the wedding, Princess Liu Zhaoning of Yong'an poured poisoned wine into the mouth of the prince Xiao Yan: "You will marry me for this palace." The next day, she changed into the prince's clothes and entered the East Palace, while Xiao Yan faked his death and escaped, using the pseudonym Xie Wu to sneak into the people. A fake prince and a useless man who faked his death were forced to join forces to fight against the regent and the Beirong secret stake. The private army in the hands of Empress Dowager Zhao, the intelligence network of Seventh Prince Xiao Jingyan, the betrayal and redemption of personal maid Xie Yunshu - when Liu Zhaoning discovered that the so-called "marriage" was just a fig leaf for her mother's collaboration with the enemy, she decided not only to survive, but also to turn this chaos into her own way home.