The Six Zones of Doomsday

[Natural Disasters + Miasma + Extreme Cold + Scarce Supplies + Technological Development + Sci-Fi + A Heroine Who Isn't a Saint + Quietly Building Strength]

Natural disasters and the apocalypse bring society's structure crashing down, and a new system emerges. Humanity shifts from living alone to living in communities, joining forces to withstand dangers lurking everywhere. Social classes divide people into ranks, and advancing from the Sixth District to the highest district becomes everyone's shared goal. None of this can escape the limits of human biology. Perhaps nothing will turn out the way Lin Miao imagined. In this confined world, survival becomes the only mission.