In the "Mirror City" known for its absolute rationality and order, the job of top memory restorer Ling Shu is to erase citizens' "harmful" memories and maintain perfect harmony in society. However, he himself is a person without a past. During a routine operation, a silver pendant that shouldn't exist was like a stone thrown into still water, causing ripples in the depths of his blank memory. In order to pursue the ultimate answer to "Who am I?", Ling Shu embarked on a dangerous path that betrayed the rules of Mirror City. He must find an exit in the carefully woven maze of memories, confront the woman who is both a guardian and a monitor - Azure, and uncover the cruel truth behind this perfect city that is enough to subvert everything.
