According to "Azuma Kagami" (The Mirror of the East), she served as a waiter at the obi-wearing ceremony to pray for the safe delivery of the baby on April 20, 1182 when Masako HOJO, a wife of Yoritomo, was pregnant with MINAMOTO no Yoriie, their first son.
『吾妻鏡』によると養和2年（1182年）3月9日、頼朝の妻、北条政子が嫡男・源頼家を懐妊した際、着帯の儀式で食事の給仕を務める。