It is said that Otsugu was engaged in the whole steps of compilation of especially the latter (aside from the actual writing) and, therefore, this book was a historical book produced by the people who had talents for writing and spirits for criticism and who were gathered under Otsugu.
特に後者は（実際の執筆はともかくとして）、編纂の全過程に緒嗣が関ったと言われており、彼の元に優れた文才と批判精神を持つ人たちが集められて作られた歴史書となった。