It is said that Prince Naka no Oe and Kamako held a secret conversation about the overturn of the Soga clan on their way home and to the MINABUCHI no Shoan's private school where they learned the teachings of Shuko and Confucius.
中大兄皇子と鎌子は南淵請安の私塾で周孔の教えを学び、その往復の途上に蘇我氏打倒の密談を行ったとされる。