Protagonist: This Villain Has a System! !

(It's not that the protagonist has a system for time travel and becomes a villain!!! It's that the protagonist is a time traveler, and the villain in the book has a system!!!) [Traditional Cultivation of Immortality ➕ Time Travel ➕ Villain System] Lu Feng traveled across the Xiuxian Continent and settled in a small mountain village at the beginning. I thought this continent was very ordinary, without any supernatural powers or anything like that. He originally planned to live a peaceful life, but unexpectedly, the demonic beast took the Qi Refining Stage to cultivate and massacred the village and destroyed his home. What's outrageous is that he, a time traveler, has no system. His old enemy got the system and improved by leaps and bounds. Who is the protagonist? Lu Feng could only rely on the knowledge from his previous life and plan step by step to survive in this immortal world and fight against the powerful enemy who holds the system.