Lin Jian, a graduate student in the Department of Archeology, accidentally traveled back in time to the Zhenguan period of the Tang Dynasty after touching a mysterious bronze mirror in a museum, and was mistaken for an assassin and almost died. Out of intuition, the young general Li Yan rescued this woman with strange clothes and strange behavior, but was forced to disguise her as his cousin to hide his identity. With his rich historical knowledge, Lin Jian helped Li Yan resolve crises time and time again, and the two gradually fell in love while experiencing major historical events such as the Xuanwumen Incident and the Anshi Rebellion together. However, whenever a key historical moment arrives, Lin Jian will be brought to another dynasty by the power of the bronze mirror, from the prosperous Tang Dynasty to the Ming Dynasty, from the prosperous age of Kangxi to the crisis of the late Qing Dynasty. What shocked her even more was that Li Yan seemed to be following her through time and space, and his identity changed from a general of the Tang Dynasty to a commander of the Royal Guards and the commander of the imperial guards... When the two finally revealed the secret of the bronze mirror and faced the choice of staying in the past or returning to the present, their love spanning thousands of years and their mission to protect Chinese civilization made them make an unexpected decision...
