Otherworld TRPG Game Master - Chapter 17: The Imperial Prince And The Think Tank

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

Yang Qi was the son of the patriarch of a wealthy family from a small town.

Believing himself to be in love, he stole a pill for his lover, only to have the girl betray him, by taking the pill and leaving him behind.

Caught, his dantian was crippled and left to die under the lightning.

This lightning helped him to recover his lost martial arts and also helped him gain a new, divine-like cultivation technique.

After this second chance, he gains more power as he sought revenge and also to find about his missing mother….

A recurring nightmare afflicted Khan's nights since the Second Impact. His dreams replayed the scenes of the crash of the Nak's spaceship, an alien race that the humans had defeated five hundred years ago.