I Become the Savior in the Warhammer Universe

In the forty-thousandth year of the Imperium, humanity's empire is already on its last legs. The Chaos Gods lurk beyond its borders, while rebellions flare up within. At this critical moment, Qin Xia transmigrates to the underhive of Cota San. From the start, he finds himself facing gang members trying to molest him. To defend his honor, Qin Xia angrily summons the Investiture of the Gods, also known as the Human Emperor's Banner, and grants several people eternal life.

Golden finger: Creator Godhood

A story of growth, characters with their wits about them, the Galactic Republic, battleships and cannons, an independent worldbuilding setting, an ensemble cast

There has never been a savior. We don't rely on gods or emperors, either.