The most terrifying thing in the world of immortality is not the Tribulation, but a math teacher with a schoolbag.
The ancestor of Jindan laid down the Nine-bend Yellow River Formation? I solved it in three minutes using the Pythagorean theorem. The Nascent Soul is capable of flying with a sword? I calculated the parabola and dropped the chalk head.
What are the rules of heaven? In my case, there are only nine-year compulsory education rules!