This Sword Cultivator is Somewhat Dependable - Chapter 631 - 93: The Third Sword Letter

Betrayed and used, Adam Palestar was a man that dedicated ten years of his life to reach the top in the game—Mortal Online—where the strong rule and weak are abused. It was a game where a single death meant the loss of all the hard work. In the end, he died in a way that was common in this game—betrayed by his closest companions—but he never expected that to happen to him.Now, reborn and regressed back to his younger self, he has a second chance—failure is not an option.

In the distant future on Earth, there was a girl with God-like powers. That girl is the last survivor of the former human race that flourished in ancient times.

The Ancients.

And on that very same Earth, a new breed of humans with the ability to wield Magic emerged.

That girl began to observe the new human race silently.

Sometimes called a God, other times called Satan, that girl continued to observe the new human race.

This is the story of the happenings between the lonely girl and the hardworking new human race.

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.

One night, enraged by unfair treatment from a family steward, Luo Zheng burns the family records. In doing so, the hidden magic in the book engulfs him and Luo Zheng becomes a new skilled fighter. Fleeing his home and despicable clan, Luo Zheng must learn to harness his powers to rescue his younger sister while his own cousins are on his pursuit.

- Description from Novelupdates

Born of a great family, world shaking genius.