In the "Eternal Night City" where memories can be extracted and traded, Lin Ci, a top memory evaluator, makes a living by peeling off other people's emotions, but he is unable to piece together his own broken past. A mysterious commission broke his peaceful life - the client Su Ying brought a memory fragment that belonged to no one: a lonely cliff lighthouse, and an unknown child's laughter. When Lin Ci dived into this memory, his dusty past was awakened, and a cruel experiment on "memory immortality" surfaced. He is forced to make a choice between pursuing the truth and protecting the remaining humanity. Is his encounter with Su Ying a fateful reunion or another carefully planned scam?
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