Galaxy in Dust

World view: In 3885 AD, the earth's ecology collapsed, and the surface was occupied by radiation dust storms and mutant beasts. Humanity is huddled in a huge "crust-level" doomsday fortress. Core conflict: The protagonist has no heaven-defying system and no prominent life experience. The only motivation is to protect his wife, children and elderly parents, and to earn a ticket to survive through hard work in the cold steel jungle. Creative highlights: Realism: Focus on describing the survival wisdom of the little people at the bottom, such as careful calculation of calorie intake, black market transactions, and trivial matters among neighbors, allowing readers to see the shadow of "themselves". Slow upgrading: The protagonist's training is not a sudden enlightenment, but a boring grind day after day. The improvement in strength is accompanied by physical pain and the passage of time.