According to the colophon, it was written by Kaneyoshi for his disciples in 1422, and also, it was written by nineteen-year-old Kaneyoshi at the request from Seii taishogun (Commander in chief) of the Muromachi bakufu, Yoshikazu ASHIKAGA, without referring to any book.
奥書によると、応永29年（1422年）に兼良が自分の子弟の教育のために書いたものとあり、また別に室町幕府征夷大将軍足利義量の求めに応じて、19才の兼良が何の書物も見ずに書いて進ったともある。