Reincarnated into a new life, Shen Changqing becomes a member of the Great Qin Demon Suppression Agency. This is a time of chaos, with monsters and strange creatures running rampant. By slaying monsters, he improves his skills and breaks through martial arts limits. Years later, Shen Changqing becomes the guardian of humanity, with all monsters and evil spirits bowing before him. "As long as I live, humanity shall not perish!"