Hiroko helped Mitsuhide in his days of difficulties--the surrender of the castle of the home ground, the masterless life, serving for the Asakura clan, Ashikaga clan, and Oda clan--by selling her black hair.
その後、本拠の落城、浪人生活、朝倉氏・足利氏・織田氏仕官という多難な日々の中で、煕子は自分の黒髪を売って、光秀を助けたという。