If this is really a work of FUJIWARA no Sadaie, this is his work when he was young around the latter half of his twenties and the composition of three volumes is not concise and the linkage between stories cannot be said to be good.
もしこれが藤原定家の真作であるならば、彼の二十代後半の若書きであり、3巻のその構成は緊密でなく、前後の連携も良いとは言えない。