In the future city "Xinhai City" where memories can be deleted, stored and traded, Lin Mo, a top memory restorer, makes a living by repairing other people's broken memories, but cannot piece together the truth about his sister's disappearance. He is like a lonely island guard, guarding the remains of memory. Until one day, a mysterious woman named Su Wan came to his door with a forcibly torn memory fragment and asked him to repair a memory that was tabooed by Mnemodyne. During the repair process, Lin Mo was horrified to discover that the clues of this fragment actually pointed to his sister who had been missing for many years. In order to pursue the truth, he embarked on a dangerous journey against the technology giant and his own past, but he did not know that he was heading step by step towards a huge vortex that could subvert the entire memory world.
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