As a soul tender at a funeral home, Su Zhao thought her daily routine would be no more than keeping vigil and watching over corpses. But one unusual body dragged her into the eerie whirlpool of the "Rebirth Tribulation": blood seeped from coffins, the dead appeared in dreams, and the boundary between yin and yang grew ever more blurred... Behind every supernatural case lay obsessions and secrets that crossed the divide between life and death. As she unraveled each tribulation, she gradually uncovered the hidden connection between her own bloodline and the world of yin and yang, and faced terrifying mysteries at the threshold between life and death.