Aetheric Chronicles: Reborn As An Extra - Chapter 15: I will kill this bastard myself...

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

A serious accident caused the protagonist’s brain to have an unusual mutation. This changed the brain development that it opened the door to a mysterious universe. Not only he obtained a ‘god-like’ powerful telekinetic control and mental perception, he also had an abnormal analysis and memory capability comparable to super computer. Having such super brain, his rough life began.

Brain development progress 10%…….20%……50%….80%…. …100%

- Description from Novelupdates

It was the year 2169. The apocalypse finally arrived.

Global warming, zombies, nuclear war, all at once. Just one tipping point and the world itself would crumble.

Then, Nova Corp, a hegemon of the corporate world, seemingly convinced the global super powers into doing the impossible: Taking everyone online.

And they did. Everyone, poor or rich, was taken into the VRMMORPG: World Online.

A fantasy world where anything was possible. A utopia, unlike everything that the real world was.

But what was supposed to become a method of existence, became a battleground for supremacy. Companies, world powers, and the rich battled to become the greatest.

The disparity between the poor and the rich grew. There was no justice in this world. It took Darwin's words further than any other.

Jake, as poor as one could get, was caught in the rift, torn apart by the unfair system.

He was a dog of the Shadow King Guild, and even though he was absolutely loyal, in the end, the guild cut him off.

He was without an anchor and left in the cruel world. He knew no Utopia like the others.

But one day, when he opened his eyes, nothing was the same anymore.

Opening his eyes, he found himself ten years in the past. He was done being the henchman now. He was not going to let himself be used anymore.

Now, it was time for him to fight back. So what if the strongest were going to stand in his way? He was going to be unstoppable.

“Did you know? I was once the most powerful person in the world, undefeatable even by the gods. If only I can retrieve my body, I could resurrect once again.”“So what?”“So... who has hidden my corpse!”