A Chen, an apprentice at a pharmacy in Qingya Town, has had only a short section of luminous white bone left in his left hand since childhood, one he can move with ease. He has no idea that this “dust bone” conceals a fragment of the Heart-Illuminating Mirror, a priceless treasure capable of overturning the immortal sects. Three hundred years ago, he broke the mirror into seven pieces and hid them in other people’s bones and blood, losing his own memories in the process. Three hundred years later, Xie Lin, the mirror’s guardian, crosses time and space and finds him through the mirror’s reflection in the cracks of his bones. He intends to help A Chen find the other six fragments, awaken the souls of the sleeping guardians, and help them reincarnate.
However, the mysterious “Your Excellency” faction, which covets the Heart-Illuminating Mirror’s power, closes in at every turn. They not only hunt A Chen to seize his dust bone, but also intend to burn down Broken Bone Ravine, where the guardians’ remains are hidden, cutting off any chance of gathering the fragments. As the pursuit and flight continue, A Chen’s scattered memories gradually return, and the truth about his promise to Xie Lin three hundred years ago and the mirror’s disassembly slowly comes to light. Amid the crisis, he must awaken his powers, evade his pursuers, and search for the scattered dust-bone fragments. In the end, he must uncover the secrets of the immortal sects behind the Heart-Illuminating Mirror, fulfill the promise left unfinished three hundred years ago, and protect everyone who sacrificed themselves for him.
