Cultivation of Immortality Starts from Buying and Selling

[Mortal flow + unlimited flow + no system + suture monsters + multiple fights] Cultivation of immortals in a foreign world, with thousands of races, each realm and one mountain. There are ordinary cultivators who can sense Qi like rain, and there is also supreme power like transcendence. This is a story in which a time traveler uses the golden finger of the space system to explore various regions and even different worlds, and constantly buys and sells, using various resources, and finally achieves eternity (I have read many million-word high-quality immortal cultivation novels, and the narrative begins after the protagonist builds the foundation)