MTL - The Special Forces King In The Mountain Village - Chapter 1682 you guessed right

Humanity lives under an unseen rule—the Ascension Cycle. A hidden system selects individuals at random, forcing them to complete tasks and gain different abilities as a reward. Anyone who fails a mission assigned by the system will instantly die on the spot.Ronan Vale wasn’t chosen at random.Killed on a mission gone wrong, he wakes up with a system unlike any other:[Evolution Path: Kill to Survive][Failure to Execute: Life Force Erosion Begins]Ronan has only one way to stay alive—which is to obey every mission assigned to him by the system. Unlike others, Ronan evolves after every task, each kill makes him stronger, sharper....but less human.As he fights to survive, he realizes his system is different. It evolves with him. It whispers to him. And it may not be just a tool—but a living thing.As war brews between Harbingers—those who embrace the system—and Eradicators, who seek to destroy it, Ronan is caught in the middle. But he has no time for their games.Because the real question isn’t how to survive.But what he’ll become in the process. A heartless monster bred only for destruction? he was about to find out.A:N; will there be romance? umm...NO!Harem? NeverKilling? YES!dark triller? YES!overpowered mc? hundred percent YES!

Mason was a mercenary, until the day he died on a mission after being betrayed by his unit.

An ultimate warrior, the one and only Alchemy Emperor, Ling Han, died in his quest to achieve godhood. Ten thousands years later, he, with the ‘Invincible Heaven Scroll’, was reborn in the body of a young man with the same name. From then on, winds and clouds moved as he set himself against the uncountable geniuses of this new era. His path of becoming a legend has begun once more. Of all eras underneath the heavens, I am the strongest!

- Description from Novelupdates

In a world where magic is long but a thing of the distant past, where humans have the potential of harnessing a dormant power within them, called Battle Force…

A man from modern day Earth finds himself suddenly waking up in the body of Norton Lorist, a youth of noble descent that had been exiled from his homeland in the North by his family to Morante City, the capital of the Forde Trade Union on the pretext of pursuing his studies.

Little did he know what would await him when he receives summons from his family years later to return to the Northlands and inherit the position of the family head…

This is the tale of his life before the summons…

This is the tale of his journey northward and the allies he gathers along the way…

This is the tale of his rebuilding his family’s dominion and keeping it safe from other power hungry nobles…

This is the “Tales of the Reincarnated Lord”.