At first, the last Emperor described in it was Emperor Shoko, but every time it was copied and published, then Emperor and Imperial Families were added and there are many discrepancies between manuscripts and printed copies.
成立当初の下限はおそらく称光天皇であったと見られるが、後世、書写・刊行の度に当時の天皇・皇族まで追補が行われて、写本や刊本の間でも内容に異同が多い。