HSR: The Mechanical Overlord

The Mechanical Overlord— the human who conquered a whole planet with the help of the machines he alone created. For five years, he was stuck on that planet, with nothing but the sole goal of returning home. And finally, on the day he finally eradicated his enemies on that planet, he was finally given a choice. [Would you like to leave?] Having presented this, he only had one answer. "Yes." However, after he clicked that option, never would he have thought that he would possess the body of someone in a Space Station amid an attack by something called 'The Antimatter Legion'. Armed with his vast knowledge of machinery, the Overlord would once more rise. * * * A Mindustry x Honkai Star Rail Fan Fic