While the Mito Tokugawa family was searching for historical materials in "Dainihon shi" (Great History of Japan) during the Enpo era, the chronicle was found in the Kanazawa library and they made ten copies of the manuscript, which were put into circulation.
水戸徳川家による『大日本史』の史料探索中、延宝年間に金沢文庫本を発見し、10冊に書写して世間に流布した。