He regarded Emperor Jinmu as 'a descendant of Wu (Chunqiu era) Taibo' and insisted on 'the theory that the Emperor had a Chinese origin' (Shichihei YAMAMOTO, "The creators of Arahitogami, a god who appeared in this world in human form").
神武天皇については、「呉(春秋)の太伯の子孫」であるとして、「天皇中国人説」を唱えた(山本七平『現人神の創作者たち』)。