When blood-red snow from melting Arctic glaciers falls into the Jinling University laboratory, Lin Mo grasps the key to the apocalypse in a vat of boiling nanometal solution. A third-year materials engineering student, he discovers that nerves altered by a virus let him hear the memories of metal: bloody handprints on a fire hydrant's casing, encrypted radio waves in the wreckage of a drone, genetic codes pulsing on a scalpel. Every inch of steel screams the truth buried within it.
In a blood-red dawn, 90% of humanity becomes bloodthirsty monsters, and settlements of survivors turn into arenas where the strong prey on the weak. Lin Mo brings along a medical prodigy who coats scalpels with poison and a paralyzed hacker who can alter electronic signals. Together, they uphold an iron rule in the burning urban jungle: when a teammate convulsing in the gym sprouts mutated bone spurs, his fire axe falls before a saint's tears; when faced with traps laid by a hypocritical rescue team, the gas pipes he detonates carve an epitaph for humanity across the night sky.
Yet as the triple-helix symbol pieced together from metal memories grows clearer, and the second supernatural ability awakening within him tears at every blood vessel, Lin Mo finally understands: this global plague is nothing more than the most insignificant control-group data in a "human evolution experiment" that has existed for half a century.
