Luo Hong was standing in front of the mountain gate of Huangfeng Valley. At this moment, he had to admit the fact that he had traveled to 'Mortal'. Pushing the glasses that no longer existed, Luo Hong said firmly: Like Old Devil Han, he is a fourth-rank pseudo-spiritual root, But I don’t have a vial, so it seems that the only way I can go is to cultivate immortals scientifically! Why is there a bottleneck every third floor in the Qi refining period? How to maximize the chance of foundation building? How many factors affect the speed of cultivation? Han How fast is the old devil running? When cultivating immortals in this world is an objective fact, then science is cultivating immortals, and cultivating immortals is science!