Cultivation of Immortality Starts from Lighting up the Civilization Technology Tree

The world is sick. A sweet poison called "Aura" is everywhere. People take it enthusiastically and call it spiritual practice. They become powerful, fly into the sky and escape from the earth, and live long lives. They also become less "human". When magic is poison, the truth is hidden in the meshing of gears and the flames of the blast furnace. When ascension is a scam, hope lies in the steel cannon that pierces the stars. From a flintlock gun, to a star fleet strong enough to darken the stars. From a screw, to a Star Destroyer main gun that can evaporate the pseudo-immortal along with his dojo. When the end point of cultivating immortality is nothingness, then let the thunder of science announce a new era for mortals! This is a war between mortals and "immortals".