Looking for Traces in Old Alleys

Deep in the old alleys of the bustling city, there is a "Tracing and Restoration Museum" that no one cares about. The owner of the museum, Lin Yan, a recent graduate from the Department of Cultural Relics Restoration, inherited the old museum and a mysterious bronze paperweight left by his grandfather. He originally wanted to live a stable life, but he found that every old thing sent for restoration contained an urban secret buried by time - a pocket watch from the Republic of China with strange patterns, which recorded underground transactions in the old concession; faded children's tiger-head shoes, implicated in the disappearance of the factory decades ago; and even an ordinary old house number was related to the forgotten demolition past in the development of the city.