"Miraiki" is not a specific book but a group of forged books with the title 'Miraiki,' assuming the name of Shotoku Taishi, created during the Kamakura period.
『未来記』は、特定の書ではなく、聖徳太子に仮託した「未来記」を称する鎌倉時代に頻出する偽書群。