The "annihilation" red tide swept the world, and surface civilization collapsed silently. Radiation dust obscures the sky, mutated monsters roar in the ruins, and the golden age of mankind comes to an end.
The survivors hid underground, lingering in darkness and despair. They built chaotic underground shelters and staged the most primitive and bloody disputes for scarce resources.
Ling Yuan, once an underground strongman who struggled for ten years in the last days, was betrayed and died at the hands of his most trusted brother.
When he opened his eyes again, he found that he had returned to the three hours before "Nirvana" came.
There is no ecstasy, no confusion, only the coldness and reason engraved deep in the soul.
In this life, he no longer trusts anyone and no longer needs any partners.
He wants to create an absolute realm that belongs only to himself, an indestructible underground kingdom.
While the world is wailing on the surface, he has activated the geothermal core deep underground.
As the survivors fought desperately for a can, his fully automated production line was already running.
As the major forces fought bloody battles for territory, his Iron Legion had quietly taken shape.
He is the only law under the ground, the only source of light in the darkness, and the Lord of the Abyss who walks in the last days.
(There is no heroine in this book. The protagonist is decisive in killing, absolutely self-interested, has an online IQ, and is invincible along the way.)
