When Jiang Yuqing, a history student, visited an ancient house, she accidentally triggered a mysterious pocket watch and traveled through time and space, returning to Jiangnan in the Republic of China in 1925. She actually looks exactly like Su Wanqing, the missing eldest daughter of the Su family, and is forced to be involved in an undercurrent of family secrets and time and space confusion.
Lu Jingchen, the son of a ruthless warlord, the Su family members with evil intentions, the mysterious legend of the clock watcher... Jiang Yuqing found that she was not only a passerby in time and space, but also a key chess piece. That pocket watch, which can stir up time and space, is connected to a story of patricide and a shocking conspiracy that was deliberately covered up. The figure of the mastermind "teacher" behind the scenes is everywhere, controlling everyone's destiny.
In order to find a way home and uncover the truth, Jiang Yuqing joined hands with Lu Jingchen, who had a bloody feud, and fled amidst a hail of bullets, time and space traps, and strange pursuits. From the deep house compound to the ancient temple on the barren mountain, from the dusty laboratory to the rift in time and space, they gradually approached the core - the legendary "Eye of Return to Ruins", the ultimate place where all gates of time and space meet.
However, when the end is revealed, what awaits them is a cruel truth and space-time turmoil that far exceeds imagination. The pocket watch whispers and the star map guides. At the final moment that determines the past and the future, they must make a choice to bring the final curtain to this unsolved case that spans a century.
