When Dimensional Administration investigator Shen Du was dealing with a series of cross-universe anomaly cases, he discovered that Jiang Yining, who had been missing for many years, was no ordinary victim. In the case of simultaneous deaths in three cities, former external engineer Gu Mingchuan died in different ways in three branches, leaving behind a "list of common subjects." The list shows that the Zeroers are using the Authority's old filing system to press similar individuals in parallel worlds into the same number, forcing them to reach the same ending. Jiang Yining ranked first on the list, and Shen Du was also marked as "to be confirmed". As clues to the "Seventh Pillar of the Returner" emerged from the files, Shen Du realized that the real enemy had been hidden deep in his identity, memory and system.
