In the first volume he centered on the process of the court aristocracy's becoming weaker and weaker, then in the second volume describing the outline of the birth and rise of the warrior class going back to high antiquity, with the sixth, seventh, eighth, and ninth 'changes' in the first volume historically overlapping with the first and second 'changes' in the second volume.
第1巻では公家が次第に衰退する過程を中心とし、第2巻では上古にさかのぼって武家の成立と勃興の大勢を述べ、第1巻の6・7・8・9の「変」は第2巻の1・2の「変」と時代的に重複する。