I Turned Wild After Being Doted On By The Big Bosses - Chapter 1547 - Endless? Area A Causing Trouble!

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Qingyun was probably the only villain who suffered this much.

For hundreds of years, a protagonist has always been barking at him and attempting to harm him, but just couldn’t kill him.

When he spent his days bedridden like a dying man, his life was no better than that of the dead.

People respected him, feared him, secretly cursed at him, but he just wouldn’t die!

But he, the ultimate BOSS, has become an insignificant cannon fodder only to be manipulated and destroyed?

That’ll never happen.

A certain green-eyed man: Cutie, come into my arms.

Qingyun: Heh heh, Lao Zi will teach you how to behave.

*Ding* the world’s most ferocious little cutie has come online~

- Description from Novelupdates

A story about a traveler who crossed into a parallel universe, relying on his Proficiency ability to continuously grind experience and become stronger.