The book has an epilogue written by Kigin KITAMURA on August 18, 1674 which begins 'Sei Shonagon, the author of Makura no Soshi, was a genius of Heian literature and the Japanese language. She was greatly admired by Murasaki Shikibu, author of Genji Monogatari.'
「清少納言枕草子者、中古文学之遺風、日本語之俊烈也。并義於紫式部源氏物語、尤当閲翫之者也」で始まる「延宝二年七月十七日甲寅北村季吟書」の跋を持つ。