Covering the sky in the primeval world
A time-traveler in pursuit of immortality breaks into the world of the sky, and the time is still more than a million years before the beginning of the plot.
Time is like a knife, how should he seek his own path to immortality, should he be self-styled or self-styled?
"Alas, if you want to enter the forbidden area, you are not qualified!" The boy lamented.