In the city of "New Babylon" where technology can accurately erase memories, Lin Chuan is a top "memory ferryman" known for his calmness and accuracy. He treats painful memories as data and calmly ferries them to the sea of oblivion. During a routine operation, a memory fragment that did not belong to the client - a woman's decisive look on a rainy night - was accidentally imprinted on his mind. This island-like memory broke his orderly world. In order to find out the truth, Lin Chuan embarked on a dangerous journey upstream. Little did he know that what he was salvaging was not only the past of others, but also his own buried soul.
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