There's a Star Destroyer in My Territory.

A battle of wits is not brainless. After Liu Yang committed suicide, he traveled to another world and became a down-and-out nobleman with no money and no one. Here, the cannibalistic fog spreads everywhere, and candidates fight each other like poison in a pot. Thousands of bloody battles between humans and chaos have become the norm. And his only support is a star destroyer in the territory that has run out of energy, and an artificial retard who is ready to be "obliterated" and "demoted". —————————— Just want to stay at home and retire? Can. But please complete the candidate mission first and try to survive. Alas, the situation is stronger than the people. Come on, it's another day of picking up garbage in the spaceship. Duel of nobles? Try this monomolecular utility knife that cuts through iron like clay. Spreading famine? Boxing wheat to find out. Monsters are rampant? Look at this hand rubbed shotgun. A witch is coming? Talk to me about the dimensional encapsulation technology that can seal galaxies! Well, not enough energy... —————————— However, when he finally ended the war, established modern civilization, and achieved a peaceful life. Only then did he suddenly see clearly the truth beyond the stars—— It was the gaze of blind and foolish gods, and the echo of death after the collapse of countless top civilizations. Above the infinite dimensions is the real battlefield. At this moment, he stood on the bridge, looking down at this prosperous planet. All the naval guns were slowly raised, and the command resounded throughout the world: "In the name of humanity—fire!"