Furthermore, from the perspective of the opening of "Hogen Monogatari" which contains descriptions similar to kagamimono (the generic name of history books with "Kagami" in their titles) works which tell of the reign of Emperor Toba, "Mutsuwa-ki" is slightly lacking in elements that link to subsequent ages.
しかも、『保元物語』の冒頭が鳥羽天皇の治世を語りだすという、鏡物に類する記述をしていることからみて、後世につながる要素はややもするととぼしいものとなっている。