Nano Machine (Web Novel KR) - Chapter 471: Descendant from the Future (1)

Osho woke up in a world both similar but also vastly different from the Earth called the Azure Star. This world is populated by terrible beasts and vile monsters that at one point pushed humanity to the brink of extinction. However, humans discovered an ability the changed the course of the bleak future. The ability to Tame beasts.As such, Beast taming became the most common profession among humans, and powerful beast tamers have power, wealth, fame, and so on. It is Osho's goal to become the most powerful beast tamer alive, and his unique ability, one that allows him to evolve his beast's, makes that all the more possible.

Beings that create and control monsters and demons, beings that build and reign over malicious labyrinths, the chosen individuals to possess an overwhelming Unique Skill… They are the Demon Lords.

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

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!