The commentary was written as follows. "I've heard the author rebut that he had no awareness of writing novels. In a word, it becomes non-fiction and the biography. According to the table at the end of the book, the material discourse provider has put 100 people. In addition, the reference citation also reached more than 100 points. This work was written in the Showa era. I think that the person who knew Mr. Yamamoto 56 was considerably alive, too. Therefore, the author himself seems to be called non-fiction. However, I think that there is perhaps a little emotion transfer to the person that the author himself likes. I also think that it will be very interesting for the reader to read.