The haze has locked the sky all year round, the ruins of the old world are rotting in the radiation belt, and the only remaining vitality of mankind is trapped in seven suspended domes.
Huang Ye was a scavenger at the lowest level in the "Rust Belt", dismantling metal fragments from the old era in exchange for half a compressed biscuit, until an accident allowed him to grab a pass into the "Seventh Dome" - the water purification chip with strange patterns engraved on it.
When the "civilized order" of the Seventh Dome was exposed to plunder colder than the Rust Belt, Huang Ye had to pull up a team composed of mechanics, exiled officials, and mutants from a scavenger who only wanted to protect himself. They have to rob water plants, break through shady secrets, and even cross deadly radiation belts to find the legendary "green core" that can regenerate the land - because in this desperate land, the Seventh Dome is not the end, but the first fire that ignites the embers of civilization.