World's End: My Keyword is One More Than Others - Chapter 304: The art of thick skin and a black heart

In 2040, The Earth was bathed in powerful radiation when a star went supernova, this radiation granted 50% of humans superhuman abilities but also created a nightmare for them as animals, insects, and carnivorous plants were mutated and became overpowered with intelligence, human started teetering on the brink of survival, a boy with no powers and no father, with a mother in a coma, seems destined for obscurity, but one night changed his life, with a new found hope to cure his mum from the everlasting sleep—Gene Elixir— he went on on a journey that would reshape his destiny...~Voracious Sovereign... Gene Devourer...Pray you won't be devoured by this power you wield which hunger is insatiable~~You call yourself an opportunist... But... you aren't free. A hungry man is not a free man...~

Corporate slave Alexander dies with only one regret—not finishing the fantasy novel in his hands. Fate has a twisted sense of humor when he awakens as Alexander Flamingo, the perverted villain destined to be expelled and killed in that very story!Armed with complete knowledge of the original plot and a mischievous “Harem King System,” Alexander plans to rewrite his fate. No longer the one-dimensional pervert of the novel, he'll use his future knowledge to manipulate heroes, seduce heroines, and rise from disposable villain to the true mastermind of this world.The system grants him power through every relationship he builds—but can this calculating reincarnator use his second chance to avoid his predetermined death and become the ultimate Harem King? One thing's certain: this story won't follow the original script.

This is a brand new story.

Survive the darkness, see the light

There is no right or wrong, it just depends on which side you are standing on.

To be a god, or to be a man.

To be good, or to be evil.

Just what is…the highest order of weapon that humanity has?

——————

After a great catastrophe struck, the world was set back many years and humanity started living in anarchy.

With time, society started building up again and people were now living in walled strongholds and fringe towns across the land.

Humans have also become distrustful and ruthless in an unforgiving society where the strong survive and the weak are eliminated.

Growing up in such an era, Ren Xiaosu had to fend for himself.

After an incident, he gained supernatural powers…

- Description from Novelupdates

Within the Immortal Realm, there were nine thousand major realms, with three thousand at the top, three thousand in the middle, and three thousand at the bottom, along with countless minor realms.