In a future city where memories can be extracted, sealed and traded, top memory appraiser Lu Chen is a man without a past. He can accurately analyze every emotion in other people's memories, but he can't read the blanks in his own. A mysterious commission brings a broken memory amber carrying the sound of waves and piano. The client, Su Qing, insisted that it belonged to her missing brother, but when Lu Chen touched it, his forgotten world began to shake violently. In order to pursue the truth, Lu Chen and Su Qing teamed up to sneak into the gray area of memory, only to find that they were heading step by step into a huge whirlpool that could subvert the entire memory industry and even his own existence. What he lost may not only be the past, but also the reality of the entire world.
