Associate Professor at the Center for Japanese Language Education and Research, Waseda University. She holds a doctorate from the Graduate School of Cultural Science, Saitama University. She has been organizing the JSL Kanji Learning Study Group since 2004 and the Mental Health Study Group for Teachers of Japanese since 2018. Her publications include "Practical Kanji Teaching for Japanese Language Teachers" (Kuroshio Shuppan 2010) and "The Japan Foundation Japanese Language Teaching Method Series: Teaching Characters and Vocabulary" (Hitsuji Shobo 2011).