In the "Mirror City" where memories can be read and judged, Ling Chen, the top memory judge, is known for his absolute rationality. However, while investigating a seemingly ordinary suicide of a scientist, he discovered a "perfect" illusion that had been carefully forged deep in the deceased's broken memory. The appearance of a mysterious figure reveals the shocking truth that memories can be "deeply woven". In order to pursue the only truth, Ling Chen was forced to embark on a journey that deviated from the rules, and every step he took was subverting the world he once believed in, as well as the past that was buried by his own hands.