Echoes of a Craftsman Across Millennia

College student Ethan Carter clashes with his intangible‑cultural‑heritage inheritor father Derek. Transported by a book spirit, he relives the millennium‑old well‑salt legacy of his forebears. His ancestors joined Marcus King’s large‑shallow‑well project in the Warring States Period. In the Northern Song Dynasty, they created pioneering wooden impact‑drilling machinery for Zhuotong Well. Later descendants constructed Pengji Well, New China’s first benchmark well.