The scribe who has been dead for three years returns to the office every night to be on duty. School alien officer Yu Heng was ordered to investigate the case, but found that the deceased was just a cover: thirty-seven living households were disappearing from their household registrations, memories and reality.
Sang Chi, who can awaken old history from nameless things, told him that when documentary evidence, physical evidence and human testimony jointly agree on a version, the past will become true within forty-nine days.
After that, the two traveled through nine places, tracing genealogy, cadastral records, wars, calendars and nine strange cases in prisons. They thought they were correcting history, but they didn't know that every verdict was completing the same "historical synthesis" for the court.
Later, Xu Cheng, a digital file verifier, discovered those thirty-seven households again. Nine conflicting histories begin to rewrite the modern era, and what can stop everything are two names that have been completely erased from official history.
When there can only be one truth, who is qualified to decide which world survives?
