There is a special bookstore hidden in a desolate place. The owner, Lin Qifei, thinks he is ordinary, but he does not know that in the eyes of the world, he is recognized as a peerless expert. Books such as "100 Tips for Raising Pigs" and "A Complete Collection of Spring Tree Planting" in the store are regarded as sacred objects by the immortals of the human race. Someone borrowed the book to cultivate a green dragon and a tree called Tongtian Jianmu. The tea he gave was the elixir of immortality, and the leftover cucumbers attracted hundreds of demons to fight for them.
