Considering the description in the Record of Japan in the History of Wei, Norinaga concluded that the Yamatai Kingdom was located in the Kyushu District, and a female chief of Kumaso was cultivating friendly relations with Wei under the pretense of Empress Jingu's envoy.
宣長は「魏志倭人伝」の記述から邪馬台国は九州にあったと結論し、九州の熊襲の女酋長が勝手に神功皇后の使いを偽って魏へ通交したと考えた。