Since the end of the largest nuclear war in human history in the Old World, 90% of the surface of the earth has been reduced to a lifeless radioactive wasteland.
The scorched earth is cracked, poisonous smog fills the air, radiation dust blocks the sky all year round, and sunlight is completely cut off.
The remaining humans huddle in safe areas surrounded by high walls, fortresses embedded in the mountains, fortresses buried deep in the ground, and floating cities hanging high in the sky, lingering in the embers of doom.
The catastrophe that almost burned civilization to the ground was called the War of Destruction by later generations of survivors.
It destroyed 90% of the earth's vitality, destroyed the country, history, faith and order of the old world, and even destroyed human beings' right to look up at the sun.
From then on, the earth sank into eternal darkness, and human civilization entered the era of eternal night.
After the war was extinguished, the old world order disappeared. Four giant companies took advantage of the situation to rise up and take charge of the new order of the end of the world:
Tiangong Xuanshu, formed by the survivors of the original Huaxia region, hollowed out the Kunlun Mountains and built a mountain fortress;
Created by the survivors of the original Sakura Kingdom, Huangquan Biochemistry dug thousands of feet under the ruins of Tokyo to build an underground fortress;
The Iron Body Alliance, established by the survivors of the original Lighthouse Nation, suspended the floating city above the remains of the Statue of Liberty;
The Covenant Church, which was formed by the survivors of the original holy city of the Vatican, surrounds the church ruins with a hundred-foot-high wall.
The four major companies formed a joint council to control laws, control territories, monopolize resources, and define good and evil.
In this eternal night wasteland where iron and blood, radiation and despair intertwine, human beings finally managed to gain a foothold by relying on cold rules and steel barriers.