Assassin at Range: The Sniper's Lethal Power - Chapter 47 - : Outwitting NPCs

Kamishiro Homura is a hero who once by himself exterminated the another world invader that destroyed the military all over the world. However his extreme strength made the influential people ostracized and exiled him from the society with false accusation of [Traitor] attached to him. A few years after that, for an unspecified reason Homura entered the magician academy and he looked after the girls that were ridiculed as the [burden platoon]…!? This is the raise of the curtain of a fantasy tale of the unrivaled and invincible young man where not a single ally or enemy can keep up with him, the young man who sooner or later will be extolled as the messiah by the whole human race!

This novel is also known as From The Start, I Traded A Galactic Warship

After getting a trading platform three thousand years later, everything in the world has become an antique, worth a thousand gold.

But it was also learned that three years later, aliens invaded, human beings fell, and the dark starry era began.

In this era of unprecedented change in tens of thousands of years.

Shen Shi decided.

First trade a space battleship, and then talk about it.

then–

Battleships come to the world from outer space! Global shock! Starry Sky Era, open in advance!

- Description from novelbuddy

After getting forcefully reincarnated into a world of an otome game he has no clue about, the protagonist is then killed and brought back to life by the prideful villainess with one desire.

To rule the world.

As the ruthless girl’s Eternal Servant, how will he dodge the fate that the game system has in store for him?

Zhou Qi was reborn countless times before the end.

Every time, it doesn’t end well.

Monster invasion, natural disaster baptism, twisted rules, world destruction…

He is familiar with the survival laws of all environments, he is the doomsday walker, the lonely savior.

However, it is also a poor worm trapped in place.

What is the truth of the end? Are human struggles really meaningless? What does his existence mean?

… Zhou Qi thought about these questions and woke up again from his dream.

When the strangeness came, he made all preparations numbly.

but–

The end did not come this time.

- Description from novelbuddy