In the near future, human memories can be extracted and stored as "memory crystals." Lin Chen is a "memory salvage man" who spends his days sneaking in the "Sea of Forgotten" where all forgotten memories gather, looking for his blank past. During a mission, he accidentally discovered a broken crystal carrying the mysterious girl "One". This crystal is not only inextricably linked to his dusty past, but also leads him to the deepest taboo in the memory storage center "Island of Echoes". Between the cold technology tower and the warm remaining humanity, Lin Chen must piece together the truth, fight against the huge forces trying to manipulate memory, and face the ultimate secret that can swallow him completely.
