Later, Empress Gemmei ordered Ō no Yasumaro to compile the Kojiki based on what Are had memorized.
The preface goes on to state that the emperor dictates the Teiki and Kyūji to Hieda no Are, but that the emperor passes away before the task is completed.
He is most famous for compiling and editing, with the assistance of Hieda no Are, the Kojiki, the oldest extant Japanese history.
He then had Hieda no Are memorize the contents of the Teiki and Kyūji, both of which were later used as historical sources for composing the Kojiki.