In a cultivation world shrouded in eerie forces, cultivators gradually lose their sanity in their pursuit of power, becoming maddened beings. The young cultivator Lin Fan discovers an ancient book by chance, one that records the stories of cultivators who lost their minds. As he delves deeper into cultivation, the line between sanity and madness grows increasingly blurred, and the world around him becomes ever more distorted. To save himself and his companions, Lin Fan must seek light in the darkness, uncover the secrets hidden behind the world, and wage a desperate battle against enemies who have lost their sanity. On this strange and challenging journey, Lin Fan must face not only the horrors of the outside world but also the demons within himself, ultimately discovering the true meaning of power and reason.