In the future city "Xinhai" where memories can be edited, deleted and transplanted, Lin Mo, an amnesiac restorer of ancient books, lives a life as precise but empty as a clock. A mysterious silver bird package breaks this dead silence and draws him into an underground storm led by the "Memory Sculptor". A mysterious woman codenamed "Nightingale" appeared and claimed that Lin Mo was once one of the best among them and that his amnesia was a well-planned conspiracy. In order to recover his "stolen" self, Lin Mo must regain his forgotten skills and dive into the abyss of other people's broken memories. However, every time he restored a piece of memory, he discovered that the truth he had forgotten might be more terrifying than the blank space.
