In the future, human emotional health will be monitored and scored by AI "emotional systems". Those who are emotionally extreme or "unqualified" will be forcibly "rehabilitated." The protagonist, Shou, is a well-known "emotional purifier" in the system, calm, efficient and without any disturbance. Gong, on the other hand, is a top-level dangerous person judged by the system to be "emotionally disqualified" and about to be erased.
Concept: People and Intelligence