Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Chapter 9[LN] Volume 2:

In 2036, humankind steps foot on Mars for the first time.

Zhou Xu, an interstellar military counselor, was selected by the “will not die in peace” system, and as a result, even though he had a great fear of pain, began his journey as villain, forced to die a terrible death over and over again. Zhou Xu, after going through a hundred worlds and dying a hundred times, finally changed. He wanted to retaliate!

When Zhou Xu crossed for the 101th time, an error occurred in the system.

Zhou Xu, ready for revenge, seized the opportunity, and at last, placed the system under his control.

Haha, Zhou Xu laughed. The villain had always been killed by the protagonist. Now, he would like to see who killed who.

Cruel and merciless shou vs domineering bully gong

- Description from Novelupdates

In a tyrannical world, what is evil? What is benevolence? All living creatures are brutal. Passing through the heaven road to find one’s purpose in life. Struggles to be stronger is not an easy path. The whole journey thistles and thorns, one blade chops open a path, I alone will be supreme!

Zou Liang, an otaku with a passionate interest in a fighting game came into a world governed by the beast tribes.

There the ones with high martial ability were respected.

Extreme beauties were a little silly.

This guy felt depressed. Such a crazy really could force a civilized people like him to turn crazy!

Scoundrel Zou began his unrestrained and destructive journey in the Beast God Continent.

Rules? There are no rules!

Principles? His actions defined the principles!

Occupations? Occupations were as unimportant as fleeting clouds. What he sought was omnipotence!

In a different world, Zou held the same passion.

This is a story of a nobody becoming the great conqueror—step by step—as a human, filled with touching emotions, explosive anger, and hot blood forever!

- Description from Novelupdates