Return of the Golden Age
In the ancient past, the world underwent a Golden Age, advances in science and magic changing the world for the better for all, and heaven-sent geniuses sweeping through the martial sects.
All that changed with the coming of the Storm.
The Storm brought with it uncountable evils, unstoppable abominations of magic, rampaging creatures even the most insane of scientists would dare not touch, and demonic humanoids capable of tearing even those gifted by the Heavens from their thrones.
Realizing the futility of fighting the Storm, the peoples of that time sealed away the best and brightest of their age, relying upon the most advanced techniques of the time in hopes that those few who survived could wait out the Storm, and once they awoke, the world could be rebuilt.