Not praying for ten strings

In a world dominated by seven super-corporations, the Longevity Species that always occupied the pinnacle of power didn't allow for the enactment of written laws. The Floating Islands of prisons delimited by lines on the map, where resources would inevitably run out in the future...
People yearned for the birth of a true "Hero," yet they cynically awaited the fall of a Hero from grace.
As long as one was hailed by the media as a Hero, even murder could be forgiven, and every word they said would be adored. Even high and mighty Elves dared not provoke the edge of a Hero.
But if a Hero of the past committed even a minor offense, the moment their image crumbled, the forgiven sins would flare up like an inextinguishable furnace, and the stars of yesterday would instantly become unforgivable criminals...
"—Come become a Hero, Russell."
The most vicious criminal in the world thrust a knife into the boy's hand, whispering a low enticement.
——————
Solo female lead, Beast Ears, Spiritual Energy, Mechanical Angels, and other elements. Cyber-fantasy. Please refrain if not to your liking.

Tower of Overturn

This towering hotel, although only having fifty floors, was the tallest building on God Communication Island.


The surrounding swarm of drones completely enveloped the building that, in the darkness, resembled a Demon King's palace overshadowed by bats.


It became the tallest building on God Communication Island because each of its floors was exceptionally high.


Looking up, it resembled a magnificent palace. Each floor was nearly twenty meters high, an astonishing height.


Maintaining such high spaces on each floor while ensuring stability and solidity obviously required special strength building materials.


Yet, the Tartaros High-rise Hotel had easily solved this problem.


"How did you manage that?" Russell asked,


while standing in the sightseeing elevator, looking down as the floors with people gradually grew closer to him, then drifted away, shrinking to the size of ants before finally vanishing from sight.


Chapter 35 Monopoly of Materials Science