Although some scholars expressed the opinion that a powerful force in the northern part of Kyushu lorded over the Nara Basin, and subsequently moved their capital into the Nara Basin; this theory gradually lost academic support.
北部九州の勢力が奈良盆地勢力を制圧し、奈良盆地へ東遷したとする見解もあるが、次第に支持を失ってきている。