Lin Feng, a modern social animal/unlucky guy/antique enthusiast (who knows a little bit but is not an expert), accidentally traveled to the world of "Under the Zhengyang Gate", around the beginning of the story (the late 1970s and early 1980s). Use the prophetic advantage to rise in the antique industry, change your destiny, make friends with/influence the original characters (especially Han Chunming), while avoiding being swallowed up by the torrent of the times, preventing unknown risks caused by the butterfly effect, dealing with the calculations of the original villains (Cheng Jianjun, etc.), And dealing with the collision between your own modern concepts and the reality of the 1980s.