A hard science fiction epic that looks back from time and space, investigates, and tries to understand the key turning points in the history of human civilization.
Each volume consists of an archival chapter and ten main chapters. The archival chapter is the beginning of each work. It takes "historical archives" as a guide and introduces the background of the story from the perspective of an "archivist". The content of the main text is an expansion of the story based on the content of the archival chapter.
The truth is fragmented, and the historical truth needs to be pieced together from limited information from different perspectives.