('Silla History' and 'Dakkai Nishikin-ki' [Chronicle of Dakkai Nishikin] in a Korean history book "Samguk Sagi"[History of the Three Kingdoms] indicates a certain relation with this theory, writing that Dakkai Nishikin is the forth King of Silla and the first generation of the Seki clan of the King's bloodline, who was from Tabana-koku Country situated in a distance of one thousand-ri [about 4,000 km] to the northeast of Wakoku [Japan]).
（朝鮮の歴史書『三国史記』新羅本紀・脱解尼師今紀では、「脱解本多婆那國所生也其國在倭國東北一千里」とあり新羅の4代目の王にして昔氏王統の初代である脱解尼師今は倭国の東北千里にある本多婆那國の出であるとされており、関連性が見られる）。