During the Ninna era, as the Hon-keizu had not served as hongi (a document based on surveys) due to lack of descriptions for ancient times (age of the gods) and the names of older ancestors, Inao the 33rd and others completed "Tanba Kuninomiyatsuko Amabe Jikito-uji no Hongi" (Records of the Amabe family, an ancient local ruling family in Tanba Province) by adding oral traditions.
仁和年中に、「本系図」が神代のことや上祖の歴名を載せておらず、本記の体をなしていなかったため、第33世の稲雄等が往古の所伝を追補して『丹波国造海部直等氏之本記』を撰述。