In Shanghai in 1926, Ye An, an ordinary scholar, suffers a sudden family tragedy when his grandfather is murdered. He awakens an ancestral divination ability that allows him to foresee the future. Determined to uncover the truth behind his family's old case, Ye An investigates step by step, unexpectedly stumbling upon the secrets of an underground engineering project that has been buried for years and becoming entangled in a struggle among multiple factions. He meets allies including journalist Su Wanqing and Uncle Zhong, and fights his way through countless traps and assassination attempts while confronting the sinister forces of the Bell Guard Society. After enduring numerous dangers, Ye An gradually unravels the grudges and secrets of his family's past, safeguards crucial clues, and ultimately ensures the proper handover of the engineering project. In doing so, he protects those around him and finds his own way home.