In a near future where nanomachines and bionic technology intertwine, Xia Zhiyu, an orphanage fire survivor, makes a living repairing broken dolls. She has no idea that she has long been the key test subject in the Ji Group's Immortality Project. Embedded in the old scar beneath her collarbone is a nanomachine fragment that took the place of a shot meant for the tycoon's daughter, Ji Han, seven years ago. And whenever she stitches a label onto an AI doll, the warmth of her fingertips charges a mysterious mechanical empire.
