After her husband Yoshinori was killed in the Kakitsu War, she became involved in the shogunate government supporting young Yoshikatsu and Yoshimasa and conflicted with Imamairi no tsubone who was Yoshimasa's menoto and loved by him.
嘉吉の乱で夫・義教が殺害された後、幼年の義勝や義政を補佐して幕政に関与し、義政の寵愛を受けた乳母今参局と対立した。