Three Thousand Avenues Come to This World, but I Am the Only One Who Chooses the Alchemy Path

Parallel world, alien invasion. Fortunately, three thousand avenues have come to the world, and everyone can choose one of them to build a foundation to resist alien creatures. The foundation of literature, martial arts, Shinto, magic, witchcraft, Gu, etc. Zhang Yin, who traveled through time, chose the Alchemy Way! The world only knows that alchemy is alchemy, but in fact, alchemy is divided into outer alchemy and inner alchemy. The external elixir is easy to understand. It involves collecting medicinal herbs and refining the elixir with various kinds of energy. And inner alchemy is an alchemy method inherited from ancient times, commonly known as - Taoist inner alchemy! Relying on the Taoist alchemy scriptures that he was familiar with in his previous life, such as the Rootless Tree, the Wuzhen Chapter, the Yin Fu Jing, and the Purpose of Taiyi Jinhua, Zhang Yin embarked on a real road. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.