Xie Qingci, a modern cultural relic restorer, was stabbed by a needle while repairing a "silver hairpin with lotus pattern" from the Song Dynasty. His soul traveled to the fictional dynasty "Dayong" and became Shen Zhiyi, the concubine of the general's palace. The silver hairpin she carries contains a "two-life contract", which will flash back memory fragments of her previous life when she touches key people/items. And her previous life was Aci, a folk embroiderer who had a life-and-death agreement with the Song Dynasty general Xiao Heng, the previous life of Xiao Che, the Dayong God of War.