The first 3 volumes are used for teiki (records of emperor's family tree), the middle 5 volumes for retsuden (a series of biographies) and the last 2 volumes for ancient practices and episodes of the society of nobles.
はじめの3巻は帝紀、中の5巻は列伝、終わりの2巻は貴族社会の故実・逸話に割かれる。