This story: With the treasure appraiser Chen Zhao as the protagonist, a journey of protecting civilization that spans thousands of years is put together. When he accidentally activates the space-time code of the family jade finger, he falls into Bianjing of the Northern Song Dynasty with the knowledge of modern cultural relic protection - the last three days when "Along the River During the Qingming Festival" is about to be completed. Faced with the water transport crisis hidden in the painting and the prototype of cultural relics smuggling in collusion between government and businessmen, Chen Zhao relied on rigorous logic to dismantle the encrypted clues hidden in Zhang Zeduan's brushstrokes, and used the ancient wisdom of "exchanging materials for materials" at the Hongqiao repair site to prevent a shipwreck disaster that might subvert Bianjing's economy.
Thousands of years of time have flowed through the lines on the jade finger, and Chen Zhao's footprints have spread throughout the Yuan, Ming and Qing dynasties: at the Nanjing Weaving Mansion in the Ming Dynasty, he deciphered the whereabouts of the lost fragments of "Yongle Dadian" from the cloud brocade patterns; at the Yangzhou salt merchant's mansion in the Qing Dynasty, he used the repair method of the broken grain of the guqin to prevent the recurrence of the "Burning Painting and Burial" of "Dwelling in the Fuchun Mountains". Every choice in time and space is full of tests of human nature - when Chengzu of the Ming Dynasty used his official position to induce him to reveal the coordinates of Zheng He's voyages to the Western Ocean, and when Qianlong asked to tamper with the inscription and postscript of "Quick Snow Shi Qing Tie", Chen Zhao always adhered to the belief that "cultural relics are not private property, and civilization has no ancient and modern times". He was even willing to endure the severe pain of time and space to protect the original historical texture of the cultural relics.
The story uses "the path of jade fingerprints gradually becomes clear as the guardian progresses" as a metaphor, ultimately pointing to Chen Zhao's spiritual core: he is not a cold bystander of history, but a night watchman who fills the gaps in civilization with his flesh and blood. In the final chapter of digital technology's attempt to reconstruct ancient civilization, he chose to inject his lifelong treasure appraisal experience into the jade ring finger, making this token that has traveled through thousands of years become a link between ancient and modern times...