In the last giant cemetery of mankind, a locked safe is all the mercy God has given.
Radiation dust is like lead-gray snow, floating in the "dam" of the doomsday fortress all year round. In the urban maze composed of steel debris, the law of the jungle is the only law. Rock, the low-level rat, was born with an unexplainable 9-cell safe - it ignores radiation freezing and can only access it with a single thought. He wanders on the edge of death like a ghost, using the only "god-given" he has to scavenge: saving a bullet, half a tube of anti-radiation, or half a moldy compressed biscuit can help him live one more day.
When the blood of the same kind soaked into the rusty iron, and when the butcher knife of the "Rusty Nail Gang" slashed at orphans and widows, the cans hidden by Rock became a bomb that ignited kindness. A kind thought was exchanged for a fatal siege by the radiated rats. In a desperate situation, he was forced to show his trump card: store the live rats that rushed towards him in the void, and then blast them at the rats like flesh and blood cannonballs! The violent killings shocked the black market, attracting the viper-like gaze of intelligence dealer Fitch. What made Rock even more chilly was the silver coin branded with the rocket badge in the garbage heap, and the radiation hyphae spreading like black living worms in the wound...
"The old world hid its divine power in the safe, but threw the key into the garbage dump." From the boss of the boiler room to the emperor of the rats, from the bloody battle at the dam to the ruins in deep space, Rock will use these nine square inches to make the ultimate gamble across the wasteland: when the rats become emperor, the steel giant door of the top-secret space zone will burst open, and the truth that mankind has lost for centuries and the weapons that can burn the world are waiting for its key keeper.
