World view: In 2149, the "Red Mist Catastrophe" destroyed 90% of human civilization (meteorite impact caused global heavy metal dust pollution, large-scale failure of electronic equipment, and mutation of surface organisms). The survivors are divided into two factions: the "Iron Dome Faction" (who hide in underground bunkers and rely on remaining technology to maintain a closed ecology), and the "Surface Faction" (who adapt to the pollution in the ruins, develop low-tech survival methods, and are hostile to technology).
Core conflict: The protagonist needs to find a balance between the technological monopoly of the "Iron Dome Sect" and the survival resistance of the "Surface Sect", while repairing the "Fire Core" that can reverse pollution, but discovers that behind the catastrophe is the technological trap of prehistoric civilization.
