Take Naruto to Practice Immortality

Simple version of the introduction: A man who travels through time and is reborn in the Middle-earth China with the "Portable Hokage" system, uses the system as the basis for survival, kills demons and eliminates demons in this world where demons are rampant and filth is rampant, and corrects the path... Deep version: A journey to immortality, a person walking alone, walking on the mountains and rivers, savoring the solitude of farewell, seeing three thousand Taoist scenery, fighting ghosts and monsters, and understanding the mysterious method. "All living beings are ups and downs, and the heaven and earth are clear and turbid. They have their own destiny. I only wish that in my lifetime, with a three-foot sharp sword, there will be no fire and evil obstacles in my eyes, no misery and catastrophes in front of me, the sky will not be stained by demons when I look up, and the earth will not be as crazy as demons when I look down!"