The Retired Hero is an Extra - Chapter 165 - : Crowning Champions

After crossing, I also got the superhuman… twisted fruit.

This devil fruit was brought into full play by him.

Distort gravity, distort space, distort time.

Fight for hegemony in the new world and become the new emperor.

The top war choice is to completely evolve this epic battle into his stage.

Luo Chen declared to the world:

My time has come! !

- Description from novelbuddy

“Crossing over to a fantasy world of magic and battle auras, Lei Luo accidentally crossed over to the Xiluo Magic Academy and became a librarian.

A modern-day antihero, who was infamous for his devious acts, dies in an explosion meant to take down a powerful criminal syndicate. Waking up in a world of sword and sorcery, he finds himself possessing a fragile, powerless body with a strange “System” that seems broken. Initially thinking he's doomed, he learns that by pretending to be weak, he can manipulate others into revealing their secrets, granting him abilities they possess. As he rises in power, he discovers that the System was intentionally sabotaged—by none other than his own future self.

As the mad researcher in a tattered white coat activated the self-destruction device, Qin Luo knew that this time, there was no escape.

He was well aware of the destructive power of the self-destruction device.
Even if he is genetically inborn with an independent space, it is impossible to use the power of his space to resolve against such a terrible explosion.

His only end would be a torn space and the crushed bones.

On an unrecognizable earth rampant with zombies and mutant creatures, this end is good.

Death is far better than living…

With a skull splitting headache he opened his eyes to find himself reborn in the year before the apocalypse happened.

Is this a joke!!!
Is this a chance for him to be prepared to combat the apocalypse?
Is God not satisfied with all the bitterness he had went through and would enjoy watching him suffer once more?

- Description from Novelupdates