Enemies and Lovers, Fragments of Mausoleum

When antique restorer Lin Wanxing restored a Ming Dynasty bronze hourglass, he accidentally activated its time-traveling ability. Every time he touched it, he could see memory fragments of the hourglass's previous owner. Gu Shiyu, a graduate student in the Department of History, was investigating the unsolved cases of the Ming Dynasty imperial tombs in order to write his graduation thesis. The two became connected through the hourglass, but found out that they were descendants of the tomb-guarding family and the tomb-robbering family six hundred years ago. When a modern archaeological team encounters a strange accident, the memory fragments revealed by the hourglass point to the "secret medicine of immortality" hidden in the imperial tomb and a tampered history. While uncovering the truth, they must face family feuds and love-hate entanglements that span time and space.