In the Nine Provinces of the Great Wilderness, spiritual energy and demonic energy coexist. Spirit-Warriors possess unmatched combat power—but suffer agonizing outbreaks of demonic marrow in their spiritual sea. Purification Vein Masters can soothe this chaos… yet most are imprisoned. Ye Wushuang, modern heir of a psychic-assassin dynasty, transmigrates into a maiden bearing the Nine Yin Divine Vein. The Spirit-Testing Stele erupts with an SSS-tier anomaly—she crushes rivals with raw psychic force and gathers elite talents.