In this book, MIZUNO, by analyzing description of the Kojiki (including the Oriental zodiac signs of the years an emperor died and okurina [the honorary name given to an emperor after his death]), came up with a sensitively exciting hypothesis that three dynasties in different blood lines such as old, middle, and new, were changed from Emperor Sujin to Empress Suiko, which could turn over the concept of the unbroken imperial line.
この著書で水野は、古事記の記載（天皇の没した年の干支や天皇の諡など）を分析した結果、崇神から推古に至る天皇がそれぞれ血統の異なる古・中・新の3王朝が交替していたのではないかとする説を立てたが、これは皇統の万世一系という概念を覆す可能性のある繊細かつ大胆な仮説であった。