Xuan Huan: Am I a Master of Cultivation?

In the world of cultivating immortals, there are many masters. Li Fan came to the world of immortality as a mortal, and was told by the system that the outside world was dangerous. But he didn't know that the sheep he raised were the demon king of a generation, and the scraps of copper and iron he put aside were magical weapons. Because listening to him playing the flute and drums, Li Youwei broke through the realm one after another. No, that girl is here again...