A winter solstice banquet with broken amber lamps made Shen Heng, the daughter-in-law of the prime minister's house, see clearly the betrayal between her husband Xiao Chengyu and her sister Shen Ruoli. When the poisoned wine penetrated her throat, she was reborn as a hairpin with a hatred for the whole family. She was shocked to realize that all the conspiracy began with the identity change of the "White Plum Girl of Jing'an Temple" - she and Shen Ruoli were actually twin sisters. Shen family used the technique of "exchanging blood to change fate" to change their destiny.
After rebirth, Shen Heng took up the pen to break the situation, revealing the art of imitation at the poetry banquet with "Bi Fang Di Mo", using the "Twin Mirror" to reveal the truth about life-changing in the cold night, and step by step unveiled the evil magic of the Shen family's "Twin Blood Sacrifice". When Xiao Chengyu discovered that the fragments left by his mother-in-law coincided with the "" notch on the silver bracelet on her wrist, and when the two confirmed the bond of twin bloodlines in front of the "blood-changing tripod" in the Shen family cellar, the suspicion and use they once had gradually turned into a tacit understanding of jointly investigating the truth.
The intrigues of the court are intertwined with the calculations of the inner house. Shen Heng transforms from a "white plum" who is at the mercy of others to a sword-wielding breaker. Xiao Chengyu also gradually sheds his false obsession with Shen Ruoli in the process of tracing the fire in Jing'an Temple and the death of his mother and concubine, and understands the sincerity in Shen Heng's eyes that shines brighter than the morning dew. When the twin mirrors appeared and the blood amber bracelets were recast, the two souls bound by the rope of fate finally understood that the so-called destiny was never a chess piece manipulated, but each other's destiny rewritten by one's own hands in redemption and symbiosis.
