In a future where memories can be retrieved, stored and deleted, senior memory archivist Lu Zhou is known for his calm and precise work. He is like a ferryman of souls, sealing people's painful past in cold data amber. However, an unexpected data restoration allowed him to discover a memory fragment that should not exist: an adult woman who looked exactly like his long-dead sister Lu Xi. This ghostly image drags him into an abyss of lies and tampering. In order to pursue the truth, Lu Zhou must dive into the sea of memories that he and others are trying to forget, only to find that the "reality" he lives on is just a carefully constructed island.
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