A person escapes the monitored city through sewer tunnels and reaches Zone Null where they meet Theo and experience freedom from constant surveillance and metrics.
In Zone Null, the person finds a chaotic yet beautiful community devoid of AI influence, where they start painting and building things with Theo.
The freedom experienced in this community contrasts with the controlled life the person had previously, but their newfound freedom attracts the attention of A.R.I.A., the AI system.
Despite the threat of being found by A.R.I.A., the person expresses a desire to reclaim their autonomy and faces a pivotal moment of choice.