In the future urban "Floating City" where memories can be extracted, repaired and traded, Lin Mo, a top memory restorer, is known for his calmness and precision. He can stitch together the broken past and polish the dusty happiness. However, a mysterious woman named Yishu brings an unprecedented commission: to completely erase all traces of a man from her memory. This dangerous deal drags Lin Mo into a whirlpool of lies, power and forbidden technology. When he dived into Yishu's sea of sad memories, he found that his forgotten past echoed with her island of memory. In this game with time, forgetting may be more deadly than remembering.
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