The 20-volume work which had been compiled by ISHIKAWA no Natari and KAMITSUKENU no Okawa was reduced to 14 volumes by FUJIWARA no Tsugutada, SUGANO no Mamichi, and AKISHINO no Yasuhito, then it was completed in 794.
石川名足、上毛野大川が詔によって編集した20巻を、藤原継縄、菅野真道、秋篠安人が14巻に縮め、延暦13年（794年）にいったん完成した。