I Obviously Look Like Superman, but Why Do They Call Me Azu?

Superman, time travel, future, abstract culture, universe, alien civilization, multi-racial, rigorous, science fiction; ordinary people travel to the earth seven thousand years later. Shortly after the earth enters the first-level civilization, in order to resist the invasion, the earth achieves great unification. In a future where no one is willing to have children, the protagonist who has awakened superhuman abilities chooses to rescue various female compatriots.