Shen Zhiwei, a modern restorer of ancient books, took over an ancient mirror of unknown origin in the museum. On the day of handover, she met the cultural relics donor Gu Yanzhou for the first time. The man was wearing a suit and ties, with stern eyebrows. She clearly didn't recognize him, but when she met those eyes, she saw a rain of blood in the sky, and heard someone say in her ear: "Don't look back."
The ancient mirror accidentally shattered, and Shen Zhiwei woke up as the daughter of the left prime minister of Dayong, an illusory dynasty. When the young emperor came to the court, the empress dowager and his family controlled the inner court. The emperor's uncle Xiao Chengyuan controlled the military affairs as regent. Qingliu believed that he was holding the emperor hostage to order the princes and usurp the throne sooner or later. The Shen family is the leader of the Qing Dynasty, and naturally stands on the opposite side of Xiao Chengyuan.
A "mirror of reincarnation" that only Shen Zhiwei can awaken tells her: If she wants to return to modern times, she must obtain the sincerity of three people in sequence - the poor scholar Xie Linchuan who lives in the Prime Minister's Mansion, the powerful regent Xiao Chengyuan, and the gorgeous and romantic Prince Ning Xiao Jingheng.
At first she just wanted to go home, so she calculated encounters, created opportunities, and recorded good feelings. But when she really fell in love with the second person, Xiao Chengyuan discovered the "Homecoming Book" with the name, order and progress. He finally understood that every time she came close might be valuable.
After the two broke up, Shen Zhiwei was forced to start the third task. As the memory of her past life recovers, she gradually discovers: the so-called strategy value never equals love, and the three people are not the three keys to the way home, but the three causal nodes responsible for leaking secrets, being rescued, and setting up an ambush in the last death. This is not the first time she has come to Dayong, she originally belonged here.
This is not time travel, but a reincarnation forced to repeat itself by the ancient mirror.