737: Became Jisetsu taishi (Ambassador Bearing the Sword of Authority), and together with ONO no Azumahito, Mutsu no Azechi (inspector of Mutsu Province) and also a Commander-in-Chief of the Defense, he carried out a road-laying project between Mutsu and Dewa Provinces which started from Taga-jo Castle and went through Ogachi Village.
737年、持節大使となり、陸奥按察使兼鎮守将軍大野東人とともに多賀城より雄勝村を経由する陸奥国から出羽国への直通路開削事業を行う。