Dujiang carp mouth was an iron cow and an iron turtle in the Yuan Dynasty, and now it is not known. It is said that the experts of the Yuan Dynasty water control used to cast 60, 000 jins of iron into two heads, and the iron turtles opened in the house were used as fish mouths. In the Ming Dynasty, an iron bull was used to make a fish mouth with more than 10, 000 kilograms of iron. . But then the iron bull and the iron turtle were washed away by the river. During the dry season in 1990, the Dujiangyan Cultural Relics Administration invited relevant experts to explore the position of iron bulls and iron turtles in Dujiangyan Neijiang and other places. Where the expert's prospector is located, if the instrument shows a red signal, it means that there is metal present, but no iron or iron turtle has been found after exploration. The whereabouts of iron bulls and iron turtles have become the mystery of the ages. When looking for the iron bulls that were cast in Dujiangyan in the Ming Dynasty, the technician Lin Cui lost himself. She is in this world, and her memories and words and deeds seem to come from another world. So where did the original Lin Cui go, would there be different possible worlds and different Lin Cui? If one suddenly becomes a forest of another world, how many more days do I need to find my original one?
