The letter she wrote asking for the remaining goods of Yusei was 'Tamakaki Letter,' and is one of the rare historical manuscripts written by a peasant woman during the medieval period.
東寺に向けて祐清の遺品を求めた手紙が「たまかき書状」で、中世農村女性の自筆書状として全国的に珍しい史料といえる。