Change the Sky

I see how high the sky is, but I don't know what is beyond it. In ancient times, when cultivating immortals, obedience became common, and rebellion became saint. But I don't know what's on it, What is this sky, and how powerful it is to create it, Where do immortals come from and what are they? See how powerful I am! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.