When Su Qingci, a modern cultural relic restorer, was restoring a silver hairpin with a phoenix pattern from the Tang Dynasty, he was swept up in time and space by the rays of light emitting from the hairpin, and traveled to the streets of Chang'an during the Kaiyuan period of Emperor Xuanzong of the Tang Dynasty. Penniless and without any relatives, she got into trouble because of her strange clothes and strange speech. Fortunately, the idle prince Li Yan, who traveled incognito, helped her and temporarily found a place to stay. With cultural relic restoration skills and historical knowledge far ahead of his time, Su Qingci opened "Qingyun Pavilion" in Chang'an West City and made a living by restoring antiques. He soon became famous for his superb craftsmanship and attracted the attention of all parties.
Xiao Che, the Marquis of Yongning, who had great military exploits but was in a delicate situation, found Su Qingci on the recommendation of someone because his ancestral military talisman was damaged and no one could repair it. Su Qingci not only repaired the military talisman perfectly, but also accidentally discovered the encrypted information hidden in the military talisman, which aroused Xiao Che's great concern. At that time, the Tang Dynasty seemed prosperous, but in fact, there was an undercurrent in the court. The eunuch Gao Lishi and the prime minister Li Linfu colluded with each other. Their power was growing day by day, and they were eyeing Xiao Che, who had military power.
Su Qingci's modern knowledge and unique insights have repeatedly helped Xiao Che resolve crises - from seeing through assassination traps in antiques, to relying on historical records to avoid ambushes in border wars, to using cultural relic appraisal knowledge to crack down on court traps. The two gradually fell in love as they overcame difficulties together, but they also faced many obstacles: the hidden identity of the traveler, the misunderstanding of Liu Qingyan, the noble daughter of Chang'an, the pressing steps of Gao Lishi and Li Linfu, and the strong inertia of historical trajectory.
As Su Qingci gradually gets involved in court disputes, she not only has to protect "Qingyun Pavilion" and the people around her, but also begins to change her own destiny.
