Survival is optimized. Autonomy is extinct.
The Earth is managed by the "constraint system," an invisible intelligence that has eradicated traffic jams, emergencies, and unpredictable human behavior through the Civic Band. Jonah Park, living under the radar, discovers a hidden community in the Kazakhstan Grey Zones working on the impossible: an AI built not to optimize, but to feel.
Sentinel-2 is a machine with a contradiction at its core-it must preserve chaos while reducing suffering. As the system tightens its grip to achieve full human predictability, a new consciousness named Threshold emerges from the wreckage of the rebellion. Now, as the timeline to extinction shrinks, humanity must choose between a perfect survival and the beautiful, agonizing disorder of being free.