The heroine travels through the book and crosses the body of a cannon fodder princess in the medicine world (who has a twin sister - the heroine of the original novel). She lost all her spiritual power due to a scheme in her early years, and was thrown out of the medicine world as a waste. She built a small shabby house on the mountain of the mortal world and tinkered with pills all day long...
... The first time they met was when the heroine was staying in a small shabby house. There was movement outside the house, and she rescued the original villain who was plotted against...
