It is about the mirror demon copying the appearance of a thousand to one, so it spreads the obsession of finding the ontology of antiquities, which leads to Yin Beet's obsession of entering antiquities many times. Pu Ying, a flower demon with a thousand-to-one memory, is bent on killing the mirror demon because she has been copied by the mirror demon. In the end, Puying was swallowed up by the demon of thousand-to-one memory and Puying's commitment to thousand-to-one, and Yin Lan almost died. Mirror Demon changed its name to Qian Yi and tried to calm Pu Ying's anger with his own name. Yin Beet's words awakened Pu Ying, and finally Pu Ying became a dandelion flying to the world. The mirror demon took Qian Yi's place and took Qian Yi's job. In the postscript, the mirror says that Qian Yi will never be resurrected. (That's it ...)