In the museum fire, firefighter Chen Yannian died while rescuing treasures from the Song Dynasty;
While investigating a smuggling case, Lu Wenyuan, a police spy who competes for the "time and space key" of the Song Dynasty to trigger time travel;
Zhao Qinghe, a female medical officer in the Northern Song Dynasty, triggered the reincarnation spell while testing medicine.
At the beginning of the Song Dynasty, their souls were bound because they jointly touched the "law of cause and effect" related to the compilation of "History of the Song Dynasty"...
How will the three protagonists, who met at the starting point of history but did not know it, continue to experience reincarnation in the history of the Song Dynasty for more than three hundred years——