It is believed that FUJIWARA no Yoshifusa and OKASUGA no Otsugu adopted this edition with the purpose of giving government officials an official education to foster allegiance to the Emperor, as well as to foster "Kuntoku no Kanyo" in the young Emperor Seiwa, thereby tried to overcome the instability of political foundation, which was caused by the enthroning of the infant Emperor Seiwa, with the help of the political power of his maternal grandfather, FUJIWARA no Yoshifusa, against public opinion that pushed for his paternal older half-brother, Imperial Prince Koretaka.
その背景について、幼少の清和天皇が外祖父藤原良房の政治権力によって、異母兄惟喬親王を推す世論に反して擁立されたことに由来する政治基盤の不安定さを克服するために、幼い天皇の君徳の涵養を図るとともに、天皇への忠誠を官人教育を通じて強く認識させる目的によって、藤原良房と大春日雄継が導入を図ったものと考えられている。