| Among his six brothers and sisters, he was the only person that the art of divination 'Koyoryu byozeisho (Selections on Divination of Illness of Koyo-ryu school)' based on "Koyo Gunkan," the art of warfare of Shingen TAKEDA was handed down by word of mouth as had been passed down for generations to the family. |
伊藤家家伝の易学で武田信玄の兵法『甲陽軍鑑』をベースとする「甲陽流病筮鈔（びょうぜいしょう）」を口伝により6人兄弟姉妹の中でただ一人受け継ぐ。 |