MTL - Underworld Game Producer - Chapter 68 You young people are so weak

The empire has turned into the land of the undead due to a spell gone wrong. God summoned heroes from countless worlds to purify the empire and plant new hope. Lee Shin Woo, an ordinary earthling, was also summoned. As an undead, that is.

The future of the world and the direction of time possess infinite possibilities. Even the same event may lead to two completely opposite outcomes due to a millisecond deviation in completion time.

I have led the Evolutionary Deluge, causing species worldwide to evolve and creating a splendid era of warriors. I have also allowed the invasion of evil gods, bringing those indescribable ancient dominators to the mortal world, instantly corrupting the Earth with evil beings.

In the infinite space-time, there are a million possibilities. I have witnessed the divinization of machinery and have seen the revival of myths. Humans call me: The Creator of Everything, The Eternal Supreme God, The Cause of All Results, The Origin of Everything.

But.. I prefer to call myself a humble observer.

There was once an immortal cultivator fighting for the fate of human beings. Unfortunately, he failed that time; but fortunately got another chance as he was reborn once more as a human, on the earth of 5,000 years ago. With a second chance, he not only would embark on the road of saving all mankind, but also would retrieve his human nature on the new journey that would last for 5,000 years.

- Description from Novelupdates

Cui Heng was transmigrated to another world and the system told him that the new world he was in was a high-grade Xianxia world.