In the orderly future city after the "Great Purge", the job of emotional archivist Ling Chen is to maintain and repair the "perfect memory" of citizens. His life is like a carefully compiled program, precise and boring. However, a smell of rust and salty smell appeared out of nowhere, like a crack, tearing apart the disguise of his memory. In order to track down the source of this peculiar smell, he teamed up with Xiaotong, a mysterious data artist, to sneak into the bottom of the memory system. He gradually discovers that his erased past is closely connected to the city's cornerstone - a forgotten disaster. He is not the guardian of memory, but a prisoner imprisoned on the island of memory.
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