The modern rebellious girl Su Nian accidentally traveled through time and became Su Qingyuan, the legitimate daughter of the Minister of Rites of the Dajing Dynasty. She was accused of marrying Wei Feng, the cruel and murderous prince of Zhenbei Hou, just after she was born. The original owner couldn't bear the humiliation and committed suicide in the lake. After Su Qingyuan took over the body, she was determined to get rid of the arranged marriage and live a free and rebellious life. She accidentally met the famous "Devil King" in Beijing, Xiao Yu, King of Jing'an. The two hit it off because of the same rebellious temperament and formed an alliance.
Since then, with the protection and assistance of Xiao Yu, Su Qingyuan has repeatedly broken the shackles of feudal ethics: visiting the ghost market at night to win orders to listen to the wind, publicly angrily attacking Wei Feng and provoking the noble daughter at the palace flower viewing banquet, and exposing the plot of the villain Shen Yurou. As the conflict with the Wei family escalated, she discovered the shocking secret of the Wei family's father and son collaborating with the enemy and treason. In order to completely get rid of the engagement and protect the people on the border, she teamed up with Xiao Yu to plan to sneak into the birthday banquet of the Wei family and steal secret letters, account books and other criminal evidence. However, she was surrounded by Wei Feng in the secret room and fell into a life-or-death crisis.
