The work was written in a mixed writing style of Japanese and Chinese loanwords or passages just like diaries written by court nobles, and it takes the form of a chronicle of the Kamakura shogun, containing records of 87 years, which begin with the Jisho-Juei War through the establishment of the Kamakura bakufu (Japanese feudal government headed by a shogun) and the Jokyu Disturbance, until the middle of the 13th century of Imperial Prince Munetaka's arrival at Kyoto on July 20, 1266, who was a retired shogun expelled from Kamakura.
そしてその後の治承・寿永の乱、鎌倉幕府成立、承久の乱を経て13世紀半ば、鎌倉を追われた前将軍宗尊親王が京都に到着する1266年（文永3年）7月20日の条までの87年間を、武家政権や社会の動きを鎌倉幕府将軍の年代記というスタイルで、貴族の日記と同じように和風漢文で記述されている。