Surgeon Lin Yifan accidentally traveled through the ancient palace and was involved in the grand conspiracy of the "Hourglass Experiment" of future immortality technology and advanced civilization. He crossed time and space with Liu Yiyi, Gu Manqing and others, and in the entanglement of intrigue, technology and emotion, they uncovered the true meaning of human existence.
Purpose: Uncover the ultimate showdown between memory and fate in the palace murder case and technological puzzle.