She was famous internationally because she was identified with 'Cho-Cho-San' (蝶々さん) in Giacomo Puccini's "Madama Butterfly" (蝶々夫人) which was her favorite and forte.
十八番であった、ジャコモ・プッチーニの『蝶々夫人』の「蝶々さん」と重ね合わされて、国際的に有名だった。