In a future city where memories can be extracted, stored and traded, Ling Chen, the top "memory submariner", is immersed in the bizarre sea of thoughts of his clients all day long, just to find the fragments that can heal his inner trauma - the last memory of his late lover Yue. During a "ultimate archive" mission for a dying rich man, he accidentally discovered a memory "ghost" that did not belong to the client - a scarlet camellia, which was a secret symbol that belonged only to him and Yue. This fatal coincidence dragged him into a whirlpool of lies carefully woven by the technology giant "Eternal Group". In order to pursue the truth, Ling Chen must sneak into the most dangerous restricted area of memory, fight against the tampered past and the monitored present, and salvage the isolated island named "love" and "truth" in the ocean of forgetfulness.
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