Ling Mo, an ordinary college student in Xinhai City, has been haunted by a secret since he was a child - he can hear the sound of gears turning in his dreams, and the seven mysterious badges in his palms always get hot at midnight. Until one day, a luminous old mobile phone suddenly appeared in the takeout box. The four words "balance imprint" danced on the screen, completely tearing apart the pretense of the world: the city's rule network was being eaten by the strange gears in the silver mist, and those beings called "world eaters" were trying to reset everything with chaotic energy.
The anxiety that the rent is about to double has not yet dissipated, Ling Mo has been involved in a game that spans ancient times and the future. He formed an alliance with A Jin, a courier who can control temperature, Chen Feng, a hacker who is proficient in rules and algorithms, Suture, a mechanic who is burdened with the mystery of his sister's disappearance, and a "mysterious visitor" whose identity is a mystery. From the Blood Eye Council in the Heart of Gear Square, to the Heart of Chaos in the Valley of No Return, to the ancient ruins under the Antarctic ice cap, the Tide Gear in the deep sea, the Sun Temple in the Sahara... They discovered that the so-called "rules" are just contracts written by predecessors with their lives.
When the silver mist of the World Devourer enveloped the world, and when the mark of balance left by his grandfather collided head-on with the exotic gears, Ling Mo finally understood: the true balance is never a black-and-white confrontation, but between the precision of machinery and the warmth of human nature, finding the convergence point that belongs to this era. And those secrets hidden in the gaps between the gears - the grandfather's sacrifice, the sister's consciousness, the real purpose of the World Devourer, will eventually be revealed with the return of the last badge, and the outline of the truth will be revealed amidst the loud reorganization of the rules.