Lin Shu accidentally enters a mysterious and unpredictable world of cultivation. With the ability to use merits and evil money to deduce cultivation techniques, he struggles to survive and steadily grow stronger in the perilous Blackwater City. Demons and sinister creatures run rampant throughout the city, descendants of immortals harbor their own schemes, and hidden forces from all sides stir beneath the surface. With deadly dangers lurking along every step of his path, he must navigate countless perils while staying true to himself, all the while striving to uncover the shocking secrets hidden beneath the mortal world.