In the future city "Mirror City" where memory can be "optimized", citizen number 734 Ling Shuo woke up after a forced optimization and lost all his memory. He only held in his hand a "memory fragment" that did not belong to him and was flashing with abnormal data. In order to find himself, he began to pursue the mysterious woman who appeared repeatedly in the fragments. However, every step he takes leads him deeper into the lies and conspiracies behind this perfect city. Is the Mirror City a perfect utopia or a gorgeous prison? The truth may be more cruel than forgetting.
