In the Moon Worship Sect, the Ji family has a special title known as "Sacred Surname."
This is a group of people with privileges. Their clan is not large, only about a few hundred people, but these few hundred are very powerful, holding control over more than half of the Moon Worship Sect's assets...
To ensure the purity and heritage of their bloodline, they practice close-kin marriage, allowing marriages except those between siblings and within three generations of blood relatives.
They kill children with impure bloodlines (those with disabilities and defects), keeping only the normal children, although they eventually made changes.
After one generation's sacred bloodline ended, they found the so-called "Heavenly Chosen Son" from outside to continue this practice...
Then the second generation, third generation to now, face that problem again.
