From long ago it has been pointed out that the story of discovery of the noble two brothers, the elder Oke no miko and the younger Oke no miko, is a typical Kishuryuri-tan (a type of folktales in which a young deity or nobleman gets over trials to be a god or a blessed) with a strong dramatic element and the story per se is hard to believe as the historical fact.
古くから、億計・弘計2王の発見物語は典型的な貴種流離譚であって劇的な要素が強く、そのままには史実として信じ難いことが指摘されてきた。