At the end of the Ming Dynasty, Shen Jinghong, a guard in imperial robes, accidentally traveled to modern times while being chased by an anchor guard to protect his mind. He looked like a flying fish suit with an embroidered spring knife, and was regarded as a "cosplay madman" by detective Su Rui as soon as he landed. But when a cultural relic restorer died on a "silk rope" in the Ming Dynasty, an entrepreneur was burned with tung oil (a replica of the Hongwu corruption case), and three consecutive murders echoed the past and present, Su Rui had to believe that this Jin Yiwei who traveled through time was the key to solving the serial cases.
The telescope can read the memory of objects, but it consumes his energy and blood every time it is used; Su Rui has modern criminal investigation methods, but cannot unravel the connection between his grandfather's disappearance and the fragments from the Ming Dynasty. As the case deepens, they discover that the murder is a ritual performed by the anchor keeper, with the goal of opening a space-time rift - and on the other side of the rift lies the alien secret of the disappearance of Zheng He's fleet. What's even more shocking is that the leader of the anchor guards is actually Shen Jinghong himself who traveled through time five hundred years ago! The two powerful forces across time and space join forces to reveal the ultimate reversal of the survival of civilization in the intertwining of ancient and modern crimes.