[No system + plot orientation + non-routine + growth-oriented protagonist] After the apocalypse, mist spread, and humans built giant cities. The high walls of the giant cities divided the world into two extremes. There is only a wall, and outside the wall is the fog of terror, the threat of death, and the despair of survival. Inside the wall is a bright and beautiful place, with people drinking and drinking. What looks like prosperity is actually just a glossy disguise on the surface, pretending to be a lingering existence after the apocalypse. In order to maintain the order shrouded in black mist, various regional forces have formed their own black mist exploration teams, responsible for protection, removal, and exploration. Let's see how Haoyu, who is accidentally involved in it, can intercept a glimmer of life for mankind in this vortex...