Han Li's ascension to the Immortal Realm fails, destroying his body, but he is reborn as a baby in the modern world on Earth.
In this life, his spiritual roots are mediocre. To his surprise, however, he finds that the cultivation problems that once stumped him can easily be solved with modern math, physics, and chemistry.
While others retreat into seclusion to cultivate, he starts companies and conducts research, combining equations for spiritual energy with quantum physics to mass-produce “scientific Foundation Establishment elixirs.”
He thought he was just getting rich the easy way, but before he knew it, he had used science to transform the entire Earth into a high-martial world of gods and demons.