This is a story of fairy fantasy + fairyland micro-suspense + silly Baitian turning the unfaithful person into a black man and increasing the hatred value. Everyone knows that Mi Shen Yin is just a brand name, but they don't know that this Mi Shen Yin is actually a prescription left in the world by heaven. Those who get it in the human world can cure all diseases, and those who get it in the immortal world can confuse all gods. However, the rare meeting in the human world has become a legend, but the immortals in the sky secretly covet her. It is true that there is such a magical guide in the heaven, but where it is and what its specific function is, it has remained a mystery for thousands of years.