The Monk's Apprentice Is a Cat

All things can kill people and enter the demon realm, kill one person to become a "mountain spirit" and a living orifice; kill ten people to become "earth monsters" and create a demon pregnancy pill; kill a hundred people to become "celestial monsters" and obtain the supernatural powers of ancient monsters. Five years after the monster caused chaos in the world, the monk Bai Tianchang took in his disciple Xia Jiu and embarked on an unknown road from then on.