Concubine Zhuang Da Yuer persuaded Hong Chengchou to surrender for the Qing Dynasty. The two secretly fell in love and got involved in harem battles and competition for imperial power. She poisoned Hai Lanzhu, outsmarted Dorgon, and helped Fulin ascend the throne. After the death of Shunzhi, she replaced Xuanye with an illegitimate son, supported Kangxi's succession, and joined forces with Hong Chengchou to stabilize the court and promote the integration of Manchu and Han Dynasties. After going through palace intrigues and iron-blooded killings, it finally laid the foundation for the prosperous age of the Qing Dynasty, and the secret of the replacement of dragon species became an eternal legend.