Rust City is divided into three floors. The sediment area is filthy and rancid, the old boiler area is filled with rust, and the glass cliff area is bright and cold. The orphan Chen San grew up in the ruins, with the mysterious keystone fragment on his chest being the only relic. In an accident, the fever of the debris awakened his danger warning ability, which also attracted the pursuit of the Jingguang Institute. He meets the night watchman Su Liang and is involved in a secret involving the survival of Rust City - the "Bone Bell" buried deep in the ground is about to awaken, murderous intent is hidden in the cracks of Guixu, and traitors are lurking in the shadows. The two go deep into the underground ruins together to fight against the mutated rusty zombies and the soldiers pursued by Jingguang. In the collision between the wasteland and ancient civilization, they search for the truth about the keystone fragments and the "Bone Bell", and vow to prevent the doomsday crisis of the ruins' collapse.
