In Crescent City, where memories can be stripped and traded, Ling Su is an illegal "memory ferryman." He wanders in the gray sea of data, salvaging abandoned memory fragments, just to piece together his erased past and a girl named "Shimmer". A dangerous commission led him to the S-class memory core of "Yongyi Technology". When he dived into the forbidden sea of data, he discovered that the truth he was pursuing might be a lie that he had chosen to forget. On this isolated island ruled by forgetfulness, retrieving memories may be more painful than forgetting forever.
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