Zichen Shangjun Lingxi fakes her soul being devoured by the Soul-Devouring Jade to break through her cultivation realm—using her devoted disciple Su Jin, born with a pure Yin-soul body, as a spiritual furnace. When Su Jin sees her master's immortal body cast into the Desolate Soul-Binding Abyss, she marries the corpse and performs an ancient forbidden ritual—sacrificing her own soul and cultivation to resurrect Lingxi.
