As the contemporary chief of the Eternal Pure Land, Star Burial's status is akin to that of a Junior Sect Leader within a sect, and, barring any accidents, once she grows up, she would take over the position of High Priest and become the next leader of the Eternal Pure Land.
Hence, she naturally knew many secrets of her own organization.
The Eternal Pure Land was established during the later stages of the God King's rise to power, precisely when the God King successfully drove the Angels out of the Witch World and began leading the world into a fugitive development.
At that time, to speed up the growth of the Witch World, increase the number of witch talents, and reduce unnecessary casualties, the God King authorized two followers to establish a department specifically to study death and reincarnation, with the ultimate goal of constructing the Underworld System.
