In the near future where memories can be repaired, deleted and edited, Chen Mo, a top memory restorer, lives on an island of his own incomplete memory. He is troubled by the same nightmare of falling every night but cannot find the source. A mysterious woman named Lin Ruoxue brought a difficult commission: to retrieve a memory that she had "voluntarily forgotten". This commission was like a key, opening up Chen Mo's dusty past. When he dived into Lin Ruoxue's sea of broken memories, he discovered that the reflection in the deep sea was actually the truth he had forgotten. The technology he is proud of and the identity he relies on for survival may all be just a carefully woven lie.
