In the future city "New Shanghai" where memories can be edited and archived, Lin Zhou, a top memory architect, survived a car accident involving his wife An Ran, but lost key memories about the accident. The official conclusion was that it was an accident, but the strange smile of his wife at the moment of the car accident that flashed repeatedly in his mind convinced him that there was something hidden behind it. In order to find out the truth, Lin Zhou tried to reconstruct the blocked memory at all costs. He went deep into the memory database controlled by the giant enterprise "Yongyi Technology", and joined forces with the mysterious data ghost "Echo" to uncover step by step a shocking conspiracy that could subvert the entire social order. The truth is hidden in the echoes at the bottom of the abyss of memory.
