The volume is based on the "Twenty-Four Chapters Sutra" as the core clue - the twenty-four secret sutras written by the founding ancestor of the Dajing Dynasty, which contain the map of the dragon veins of the world, military power orders, secret plans for checks and balances in the court, and the blood testimonies of the previous dynasty's extermination of the family. They are hidden among the seven major powers: palace confinement, vassal kings, aristocratic families, border gates, academies, ancient temples, and rivers and lakes.
