In the "Fog Harbor" where technology can strip away and store memories, Lin Chuan, a top "memory submariner", shuttles through the "Sea of Forgotten" formed by human subconscious all day long, salvaging abandoned memory fragments. His only obsession in this life is to retrieve the memory that disappeared with his sister five years ago. A mysterious commission dragged him into the center of the whirlpool: sneaking into the memory island of a deceased business tycoon and retrieving a closely guarded core memory. When he touched upon that dusty past, he was horrified to find that the giant's secret, the client's purpose, and the truth behind his sister's disappearance were all entangled in this dangerous deep sea of memory. The price of the truth may be everything he has left.
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