Modern history scholar Jiang Wan accidentally traveled to the sixth year of Chongde and was reborn as Dong E Yuying, the daughter of the Zhengbai Banner leader. When she first entered the Qing palace, she stood out in the draft with her knowledge of history, but was recommended by Huang Taiji to marry Prince Duduo of Yu - the iron-blooded prince who died young in history and was currently falling out of favor because of his opposition to the Sinicization policy.
On the wedding night, Yuying shocked Duduo by saying "Can the tragedy seventeen years later be avoided?" The two gradually tested each other and gradually trusted each other. She helped him resolve the political crisis, while he defended her against the overt and covert attacks of his direct descendant Fujin. When Yuying used modern medical skills to treat the plague and opened a school for girls, Duduo discovered that this Fujin could predict the general trend of the world, and Yuying also realized that history was quietly changing because of her intervention.
When the Qing army entered the pass, Yuying used her advanced knowledge to help Duduo achieve unparalleled military exploits, but this attracted the fear and covetation of the regent Dorgon. When Duduo was ordered to go south, Yuying took the risk to reveal the secret: "According to the original history, you only have three years left to live." In order to change her destiny, she rushed to the military camp thousands of miles away and used modern medical methods to recapture him from the death hands of smallpox.
From political marriage to life and death agreement, from prisoner of history to master of destiny. Yuying and Duduo worked together to promote the policy of Manchu-Han integration, disrupt the palace conspiracy, and finally break the tragic ending recorded in history books. When Duduo stood in front of the Hall of Supreme Harmony to accept the regent's seal, the women's academy founded by Yuying had already trained the first batch of female scholars who were proficient in both China and the West - and together they created a new dynasty that was more glorious than the original history.
