Lin Wei is an ordinary high school history teacher who is obsessed with an ancient jade passed down by his family that is engraved with mysterious lines, but he never thought that it could be the key to "parallel historical time and space". After an unexpected contact, she was involved in the war in the late Ming Dynasty, and a strange voice appeared in her mind: "Fulfill your wish to pass on the secret message, otherwise you will be trapped here forever." In order to break the cycle, Lin Wei transformed into a "time and space ferryman" and traveled through different historical nodes such as the Ming and Qing Dynasties, the Republic of China, the 1980s and 1990s, and completed the unfinished business for the ancients.
However, as the mission progresses, she is shocked to realize that the "clients" in each time and space are inextricably linked to her family - the loyal ministers in the late Ming Dynasty are her ancestors, the scholars in the Republic of China saved her grandfather, and the craftsmen in the 1980s and 1990s are actually the grandfather she has never known. What's even weirder is that someone is using another "time-reversing jade" to tamper with history and try to subvert the real order. The true mission of ancient jade is to protect the integrity of history; and the secrets passed down from generation to generation by the Lin Wei family are the key to stopping "those who go against the times." While traveling through time and space, she not only had to compete with the torrent of history, but also faced the fate of her family. In the end, she became the true guardian of time and space through the choice between "protecting history" and "saving relatives".
