In Liulic City, where memories can be extracted, traded, and even discarded, Lu Zhou, a top memory master, makes a living by stripping away the pain of others, but his heart has long been numb. He is like an island, floating in the turbulent ocean of emotions from his clients, but never getting wet. Until the arrival of a mysterious woman, Ling Shuang, she did not want to forget, but just wanted to retrieve a dangerous memory that was deliberately thrown into the "Sea of Forgotten". This strange commission dragged Lu Zhou into a dark vortex about the origin of memory technology. Not only does he have to fight against his pursuers, but he also has to face his own past that has been dusty for a long time and is enough to swallow him completely. In this deep sea of countless forgetfulness, is it the truth or the lost self that he wants to find?
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