Modern surgeon Su Qingwan died unexpectedly, and when she opened her eyes again, she became the legitimate daughter of the prime minister on her wedding day. As the wedding sedan swayed and blood flowed, she was forced to be involved in a life-and-death situation that spanned hundreds of years - the truth about the original owner's suicide by hanging from a beam, the strange poison in the body of the ninth prince Xiao Yu, and the conspiracy between Su Xiangfu and Mobei Royal Court, all of which were entangled with the legendary "Twin Souls" secret technique.
Su Qingwan, who was forced to marry into Prince Leng's palace, used her modern medical skills and the lost "Xuanji Nine Luo" acupuncture method to form a fatal alliance with Xiao Yu in the murderous pursuit. Poisoned wine, poisonous insects, soul-suppressing coffins, every game is a life-and-death struggle; jade pendant fragments, seven-star brand marks, quantum rifts, everything hides the mystery of time and space. She discovered that her soul was actually the "medicine guide" connecting ancient and modern times, and that deep in Xiao Yu's lifeline lay the truth about the Lin family's centuries-old curse.
When the war broke out again in Mobei, the skeletons of three hundred brides under the ice pond, the wreckage of the interstellar medical cabin, and the secret technique of blood sacrifice in Yaowang Valley emerged one by one. The two were forced to shuttle between the ancient battlefield and the modern operating table. Fighting poison with poison and feeding the formation with soul, can they break the reincarnation fate of "seeing each other year after year"? This battle between medicine and poison that spans time and space will eventually reveal the cruelest sacrifice behind the twin souls...
