At the end of the prehistoric period, Zhou Xuan, a young black tortoise, was suppressed at the foot of Buzhou Mountain and used as a "mountain-holding post". He accidentally activated the golden finger of the "Chaos Devouring Furnace", using the tortoise shell as a furnace and flesh and blood as a guide, devouring the world and spiritual creatures to evolve rapidly. From the "shrinking turtle" who was casually crushed by the ancestral witches, to swallowing the green lotus of chaos to reshape the Taoist foundation, the twelve ancestral witches seized the opportunity, intercepted the Hongjun Taoism and became a saint, and finally turned the tide in the third calamity, reestablishing the order of the ancient world with the gesture of "swallowing all the injustice of heaven", and becoming the "world-eating Taoist ancestor" respected by all races. The strong points of enjoyment are concentrated on the three core points of "crushing devouring", "counter-killing the superior" and "reversing the rules of heaven". Every ten chapters must have a climax of breaking the situation/slap in the face/treasure grabbing.