"What... Underworld?"
Adalbert blinked.
He was a bit slow to react.
The underworld mythology of Terra isn't well-developed, likely because the Calamity of Heavenly Fall resulted in the loss of some legends. Nowadays, the more common belief among the people is in the 'Heaven and Hell' system, and the vast majority of Sublimators are well aware that the ultimate destiny of the soul is to return to the natural cycle.
Apart from the Retrospection Sect, not many are interested in the 'afterlife'—the absolute mainstream is simply to seek a happy and satisfying life.
Ian took the thick stack of conception and calculation blueprints from the hands of the young Deceased Monarch, scanning over the thoughts and calculations inscribed upon them.
Indeed, Adalbert's ideas were optimized from the initial thoughts of Ian.
Initially, Ian thought to use Artificial Souls and gather a number to activate the Spirit Machine Core.
