As Lin Bai had said, the inheritance system of the Nine Underworlds Demon Palace was extraordinarily complex.
Generally speaking, it should be divided into ten parts.
The first part was the inheritance tradition of the Nine Underworlds Demon Palace, centered around the Nine Underworlds Devil Scripture.
A hundred thousand years ago, before the Holy Lord had risen to prominence, the Nine Underworlds Demon Palace had merely been an insignificant small faction in the Devil Realm Eastern Region.
It had barely reached the level of a top sect.
At that time, the Nine Underworlds Devil Scripture had merely been an inheritance that the Nine Underworlds Demon Palace had obtained from a perilous land.
But as the Holy Lord rose to prominence and led the Nine Underworlds Demon Palace across the world, he rewrote the Nine Underworlds Devil Scripture, refining the various wondrous techniques, mystic arts and Dao arts, and arts of Great Mystic Art Users he had obtained throughout his lifetime of conquest into it.
For example, the Nine Yuan Devil God Art cultivated by Lin Bai and the Nine Underworlds Ascension Art cultivated by the Second God Child, Duanmu Lin, had all been added when the Holy Lord later revised the Nine Underworlds Devil Scripture.
This was merely a small portion of the revised Nine Underworlds Devil Scripture. The complete scripture contained all kinds of martial skills, cultivation methods, Dao arts, mystic arts, and arts of Great Mystic Art Users.
This was the first part of the Nine Underworlds Demon Palace's inheritance tradition, as well as the inheritance tradition made public to outsiders.
Besides this, there was the second part of the inheritance tradition.
The channel of inheritance for the second part referred to the Scripture Repositories of the Nine Great Palaces.
This, too, had to be traced back to