Xia Wanwan, who loves the history of the Tang Dynasty and regards Wu Zetian as her idol, has the spirit of Shangguan Wan'er, a talented woman from the Tang Dynasty. Prince Li Hong looks exactly the same as his ex-boyfriend who died unexpectedly. It may be fate that allows them to renew their relationship in the Tang Dynasty... Faced with Empress Wu's seizure of power, the overt and covert struggles and bloodshed in the former harem, as well as Li Xian and Wu Sansi's admiration for Wan'er, whether Li Hong and Xia Wanwan, who have long since died in history, can join hands again thousands of years ago, or whether they will still end in tragedy, is probably God's will.