In the "Mirror City" where neon lights and rain intertwine, memories can be read and judged. Ling Ye, the former "memory judge", went into self-exile due to a fatal miscarriage of justice, and spent his days living with synthetic alcohol and nightmares from the past. However, an unsolved "suicide" case of a top scientist drew him back into the whirlpool. A mysterious client, a tampered dying memory, and the technology giant "Nexus" that controls the city force Ling Ye to once again dive into the deep sea of consciousness that he vowed never to touch. In this city where truth and falsehood are difficult to distinguish, he is not only pursuing the truth, but also the ultimate redemption of his own sin and punishment.