In the near future where memories can be deleted and edited, Lin Mo is a top "memory cleaner" known for his calmness and precision, erasing the painful past for clients. His own past is a blank - a voluntary amnestic operation ten years ago made him a rootless person. During a routine mission, he accidentally discovered a burning lighthouse that only belonged to his dream deep in the client's memory. This "data afterimage" that should not exist was like a fire, igniting his doubts about his blank past. In order to recover his "stolen" identity, Lin Mo embarked on a dangerous pursuit, only to find that he was involved in a huge conspiracy that could subvert the entire ethics of memory technology.
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