The ninth calamity of the Xuanhuang world is approaching. Lin Duan, the expelled prisoner, has the Tao seed of the observer buried in his body. Jiang Wuyue, the saint of the Zhuoyuan, has forbidden eyes that can see reincarnation. The petrified body of Yan Xingjing, the guardian of the earth's monument, is inscribing prophecies of destruction. When the Taoist embryos auctioned by the Mirage Chamber of Commerce awakened, the three of them discovered that the so-called mysterious bones were actually parasitic pollution, and the twelve-energy chalcedony was actually the key to the end. The Fallen is gnawing at the mainland, the ruins are corroding the Taoist heart, and the observers are using the common people as variables to deduce the truth outside the Tianxu - this world is just the most mediocre control group in the calamity experiment site.