Qin Haoyue, a senior girl who is about to graduate, went on an adventure to the mountains of western Guizhou with a group of traveling friends to celebrate the end of her school days.
A sudden mudslide separated Haoyue from his teammates. Haoyue accidentally fell into a bottomless cave while searching for a way.
Haoyue, who survived the catastrophe, woke up and traveled to the Tang Zhaozong era thousands of years ago and transformed into a princess of the Tang Dynasty.
However, the Tang Dynasty during the Zhaozong era was already in turmoil and was on the verge of the most chaotic Five Dynasties and Ten Kingdoms period in Chinese history. In this war-torn era where "no princes or generals have their own kind, only those with strong soldiers and horses will do it", how should Haoyue, as a subjugated princess, live peacefully, and can she find a man with whom she can spend her whole life?