History student Jiang Xiu's life is filled with gaps filled by discipline and repression - her class notes are neatly written, but she cannot hide her secret desire for freedom; she is gentle and polite to others, but in the shadow of being bullied in her childhood, a "she" has long been split that even she has not noticed. Fragments of memory became the norm, until a Song Dynasty jade pendant with branching patterns touched her fingertips in the museum. The burning sensation exploded, and time and space suddenly became displaced.
When she opened her eyes again, the bluestone roads in Lin'an City hurt her knees. The familiar white T-shirt was replaced by the coarse cloth skirt. The cracked jade pendant around her neck became the only token connecting the two worlds. At the moment of panic, the "other self" in the body suddenly awakens: "Yao" has a fierce edge, repelling harassing gangsters, using modern ideas to set up stalls to make money, and even dares to argue with petty officials.
Jiang Xiu struggled in the chaos: she was still worried about the trouble Yao caused the night before, and when she woke up in the morning, she found that "she" had secretly signed up for the women's skills competition. She wants to hide her edge and seek stability, but Yao wants to break away from the restraints and live happily, with two personalities competing in one body. The appearance of Xiao Feiwen, a silk and satin merchant, adds more variables to this Song Dynasty survival - he is holding fragments of the same jade pendant, and there are secrets in his eyes that she cannot understand. No one knows whether he is an enemy or a friend.
From the museum to Lin'an City, from cowardice to the symbiosis of two souls, when the truth of childhood trauma emerges with the doctor who comes from time-travel, when the persecution of the powerful and the scheming of the people follow one after another, Jiang Xiu finally understands: the jade pendant opens not only the door to time and space, but also the entrance to reconciliation with oneself.
