In 2047, genetic weapons are rampant and the super crime rate soars by 300%.
Chen Jue, the top scorer in the college entrance examination, accidentally awakened the F-level useless ability "metal perception", but was specially recruited into the mysterious urban vigil force.
Everyone laughed at him as just a logistics soldier repairing weapons.
Until the S-class invaders came to the city, nuclear bombs could not penetrate the opponent's absolute defense.
Chen Jue gently pressed the shield wall: "The temperature of your alloy was 217 degrees lower during smelting."
