Kenshin's strong sense of duty and attitude towards convention were very famous, and Ujimasa HOJO said about him as follows: 'Shingen and Nobunaga are always honest and reliable. Kenshin fulfilled duties when he was requested even after his death. Hence, he wished to make talisman for the protection of young Taisho (general) with part of his underclothes'.
謙信の義理堅さ、約束事に対する姿勢は大変有名で、北条氏康は彼について「信玄と信長は表裏常なく、頼むに足りぬ人物だ。謙信だけは請け合ったら骨になっても義理を通す人物だ。それ故、肌着を分けて若い大将の守り袋にさせたい」と発言している。