The prerequisite for recruits joining the Holy Knight Order was possessing the "holy" attribute.
Within the order, several different divisions were established according to how the holy attribute was used.
Broadly speaking, they fell into two categories:
"Support": Provided Holy Light healing and purification. This was the largest group within the Holy Knight Order, and its members also had the opportunity to pursue further training at the Holy See.
"Offense": Some specialized in casting holy spells as holy mages, while others were melee combatants capable of condensing Holy Light power onto their weapons.
Some might have wondered: weren't offensive Holy Knights simply Battle Nuns?
That was not the case.
The special term "Battle Nun" had emerged roughly thirty years ago.
It was a term personally proposed by the Pope in accordance with the Great Expedition plan.
Female, celibate, and trained by the Holy See—these were the fundamental elements of a Battle Nun.
According to big data analysis, women wielded "Holy Light" far better than men.
At the same time, they were better able to restrain their desires, with a relatively complete "nun" system in place to supervise them.
Through celibacy, an individual's affinity with and understanding of Holy Light could be enhanced.
During preliminary screening, a nun's Holy Light affinity had to exceed the average of others at the same level by at least 50%.
They also needed exceptional combat talent.
This talent would be assessed through combat by a "Red Robe Bishop and instructor" from the highest Holy See.
Only after undergoing extremely rigorous Holy See training and layer upon layer of selection could one become a Battle Nun specifically trained to fight Abyssal Demons.
To a certain extent, they had already separated from the Holy Knight Order.
They answered directly to the highest Holy See and were more