Demon Sage

The age of faith turns millennia, and when everyone thinks it will last forever, a new age arrives with the roar of the machines.
Steam engines, machine factories, firearms, artillery, steel warships!
Faiths of the past are crumbling in the awakened humanity, and the gods in the starry sky set foot on the earth.
The living beings in the mortal world awaken to their origin, stand up, and welcome a new era.
Who can ascend to the throne of the new era in the high voice of the multitude?
I am summoned by the forbidden power to write a chapter of a demon sage…