The heroine is not a genius, she is a "waste" - but she is very technical. While others pursue success rates when refining elixirs, she specializes in refining waste elixirs; while others pursue the purity of their bloodline by contracting with divine beasts, she specializes in picking up sick and unwanted spiritual beasts that others do not want. The "erysipelas" that everyone in the world of immortality is afraid of is the nourishment for her cultivation.