After Technology Reached Its Peak, Spiritual Energy Suddenly Returned?

After transmigrating for decades,

Nangong Wumu successfully led the True Spirit Continent

from the age of farming to automated machinery,

from warring kingdoms to a united continent,

from the age of mythology to the development of science,

from human labor to electricity...

He even brought the entire continent the same prosperity as the world of his previous life.

Then one day, demons from beyond the realm appeared, plunging the whole continent into panic. Just as the soldiers guarding the city raised their spears to fight back,

a flying sword shot out from a place of utter peril and struck down the demon in the sky.

"Isn't this supposed to be an ordinary, mundane world?"

System: Take a guess why this place is called the True Spirit Continent.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.