It is thought that the royal family and nobles of Baekje who moved to Japan after it was subverted from the end of the seventh century to the beginning of the eighth century compiled the history book of their home country again and presented it to the government of the emperor.
七世紀末～八世紀初めに、滅亡後に移住した百済の王族、貴族が、持ってきた本国の史書から改めて編纂し直して天皇の官府に進めたと考えられている。