In the 22nd century, where technology is extremely advanced, human memory is no longer a private and inviolable domain. A technology called "Traceability Project" can accurately read, store, and even transplant the memories of others, bringing unprecedented order and efficiency to society. Criminals are deprived of their memories for research, the lives of the deceased are encapsulated for remembrance, and "perfect citizens" are even cultivated through memory transplantation. However, when "memory architect" Karen discovered a woman who had been sentenced to "memory erasure" during a routine maintenance, Laila, her body was filled with "old fragments" that did not belong to her, and these fragments were trying to reconstruct her core identity. He realized that this was not an ordinary system error, but had touched the deepest forbidden zone of human consciousness. Tracing these echoes, Karen and Laila discovered a shocking secret about the origin of the "Tracing Project", a truth that could subvert the entire society and even human cognition. In the maze of intertwined true and false memories, how will they find their "true self" and reveal the concealed "collective consciousness"?
