Hidden in a dilapidated painting shop on an old street is a "sweeping monk" who is a master of ancient painting restoration. Lu Yan inherited his grandfather's lost craftsmanship and could bring broken ancient paintings back to life with just a brush and a bottle of plant water. Unexpectedly, the pseudo-expert Zhou Shichang came to provoke him, slandering him as a liar, trying to steal the ancestral secret book and destroy his shop. At the critical moment, female treasure appraisal anchor Xia Wanxing took action and exposed the evil deeds of pseudo-experts live, and even invited Lu Yan to start a special live broadcast of restoration. Since then, the lost techniques of "repairing paintings to make them look real" and "revealing and resurrecting them" have amazed the entire Internet. Fragments of Song Dynasty scrolls and famous paintings of Yuan Dynasty have regained their splendor in his hands, and he has received millions of honorariums and invitations from big names. But as his fame grows, the truth about his grandfather's "accidental" death comes to light, and the mysterious black hands are closing in step by step. Lu Yan holds the secret code in his hand and uses his craft as a blade. While slapping pseudo-experts in the face and protecting intangible inheritance, he is also tracing the truth and protecting love. When the broken national treasure was restored in his hands, the whole Internet went crazy: "This is China's real intangible cultural heritage master!"
