In the 58th year of Hanchen in the Hanchu Kingdom, before his death, the emperor ordered all the princes to come to the main hall to announce his legacy. The prince was deposed, and the four princes ascended to the throne. After the death of the emperor, they will directly succeed to the throne. The other princes must obey the orders of the fourth prince.
Mu Jinyun, a 15-year-old top student at Tsinghua University who is obsessed with detective novels in the 21st century, was accidentally hit by a car. She was out of danger after being sent to the hospital but was still in a deep coma. No one knew that she had traveled to a mysterious country - Hanchu Country. As the daughter of Mu Zhen, the founding general of the Hanchu Kingdom, she is admired by thousands of people, including the Emperor Mo Haocheng and King Che Mo Haofeng who love her. The mysterious man Leng Zixi had been secretly spying on Mu Jinyun, but was later discovered. What happens next? Will Mu Jinyun return to modern times? Will Mu Jinyun, who has always been straightforward, change due to different people? What will be the final outcome?