No Way People Find Cultivation Difficult, Right? - Chapter 284 - The Calamity of The Ten Nations, The Scene in the Well of This Life! 

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

Through an array of coincidences, Alex comes to learn that making pills is one of the best ways to earn money in the game, 'Eternal Cultivation.'

If mercy and kindness can't save the world, then this time, I choose violence. I was reborn in death, like sin under the blazing sun.——Ethan ColeHuff... What’s going on?There’s a flight attendant with a D-cup sleeping next to me!?Did I really get reborn!?Back to fifteen days before the zombie apocalypse game starts!?[Ding! Congratulations, lucky one! You’ve been granted a one-time chance to be reborn, along with a spatial storage ring!][Ding! Please choose: Join the humans or the zombies?]A cheat ability, and a storage ring!?If I choose to be human, I can stockpile supplies, hang out with different women in a safehouse... Isn’t this the perfect start for a post-apocalyptic hero?“So this time, I choose... zombies!”God: “Idiot!!! If I’d known, I would’ve given this rebirth chance to someone else!”

Kieran Silver is a young man who suffered from the deceit of his superiors. His outstanding talents and exceptional prospects to climb to the top of Zenith Online dismayed his superiors.

They invoked their influence to suppress his uprising, ultimately causing his demise. However, rather than perish, Kieran Silver receives a second chance.

A chance to dethrone one of the top 10 guilds, Golden Brigade. An opportunity to create an immortal legacy that would forever live on in players' minds. The ability to reach the zenith in both worlds!

However, as he is reborn, Kieran notices a few things that are different from what he remembered. Could it be that he has gone back in time, or is there an even deeper explanation and a larger power at play?

These questions will be answered, whether forcibly or inadvertently, as Kieran explores a seemingly driving force.

The advent of the Legendary Berserker begins!