In the winter of 1973, Jiang Lin traveled through Chengdu to work as an educated youth in the countryside. When he woke up, he was shaking due to hypoglycemia. He was mistaken for epilepsy and had a flowered cloth shoe stuffed into his mouth. On the verge of collapse, the "All Things Sign-in System" suddenly awakens. Facing the crowded Datongpu of educated youths, he was determined to use the turnaround brought by the system to take a different path in this frozen black land.
