The present work is a study of the Ojo yogisho, narabi ni Juni Mondo, Zenshobo Kyoke Innenshu (The Collection of Stories relating to the Essentials of Birth, the Twelve Questions and Answers, and the Proselytizing Efforts of Zenshobo), a text written by Honen and copied in 1460 by the monk Jonin. Currently held by Nishi Honganji, this work was known only from an article in the Kosha Koban Shinshu Shogyo Genson Mokuroku (Catalogue of Extant Manuscripts and Woodbkock Editions of Shin Buddhist Scriptures Works) 古写古版真宗聖教現存目録. Since there has been no complete study of this work, its contents remained a mystery. The only text available to scholars has been a manuscript copy held by Otani University. With to the cooperation of the administrators o...