Strongest Survival by Otome Game’s Heroine (LN) - Vol 2 Chapter 3: The Days of Training

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.

It’s a world of men.

It’s a mystical tribe.

Liang Yue crossed over as the son of the chieftain.

The whole tribe is concerned about Liang Yue’s marriage.

Every races in the whole tribe want to have baby with Liang Yue~

- Description from Novelupdates

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.

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.