In the future, memories can be completely stripped and stored. Lin Zhou is the top archivist of "Memory Ark". He seals up his clients' memories day after day, like a watchman on an island without a past, in order to escape his own broken past. Until one day, a mysterious woman named Xiaotong brought a seemingly ordinary memory of a rainy day. The tiny anomaly hidden in this memory, like a stone thrown into a deep lake, not only broke Lin Zhou's calm, but also drew him into a huge whirlpool about technological ethics, the meaning of existence, and tampered history. He was forced to embark on a journey to retrieve the truth, only to find that the island he was guarding was the prison that imprisoned his past.
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