An unexpected rebirth finds our protagonist as a eunuch sent to the Xiaoling Mausoleum, his body incomplete and his situation perilous. Yet, he possesses the superbrain from his past life. In this world of flourishing martial arts and numerous sects, he cultivates his abilities, heals his body, and rises to power. He infiltrates sects, destroys the demonic cult, manipulates the martial arts world, enters the Prince's mansion to aid in the struggle for the throne, helps a princess become empress, unifies the land, and establishes peace.