After My Spirit Root Was Stolen, I Became the Villain Family's Treasure

Sang Yao wakes up as a doomed substitute heroine—despised, betrayed, and destined to have her spiritual roots ripped out by a demon king. She fakes her death and stumbles into the arms of the novel's greatest villains: a final-boss father, cannon-fodder brothers, and a trash fiancé who's secretly a yandere demon lord. Armed with an Investment System that returns a hundredfold, she turns nobodies into legends—backing her useless fiancé, an exiled dragon prince, a ruined merchant heir, and a demon emperor's lost son. At the continental summit, her villain family dominates the cultivation world w…