Let Me Be the Ancestor of the Holy Land

A modern sigma male transmigrates as Lin Xuanqing, the ancestor of a cultivation holy land, but possesses no spiritual power and must pretend to be profound to survive in his secluded mansion. After activating a mysterious system that can only kill Great Emperor-level beings, he finds himself powerless against ordinary enemies. As the holy land's disciples face dire straits, Lin Xuanqing is forced to step in. Amidst mockery, the system triggers, leaving him to wonder if he can protect the holy land and rewrite his destiny.