----"Index."
Her formal name was----"Index Librorum Prohibitorum."
This girl, who looked for all the world like she had an alias, was far from an ordinary nun.
Index was a mage affiliated with English Puritanism.
It was one of the three major factions of the old Christianity based in England.
In the sixteenth century, England's king had established an independent Christian system within his own country to oppose the Roman Orthodox Church, making it England's state religion.
That was English Puritanism.
By now, English Puritanism had practically become a magical faction that held the real decision-making power in England.
This church was particularly advanced in the culture and techniques of hunting witches, interrogating heretics, religious trials, and other methods of punishing criminals who used magic.
Therefore, English Puritanism had an organization under its command dedicated to handling incidents involving mages.
----"Necessary Evil Church."
It was also known as The Zero Holy Ground.
Everyone in Necessary Evil Church, which belonged to The Zero Holy Ground, was a mage.
Index was one of them.
However, Index was unable to use magic.
That was because her most important duty as a mage was not combat, but recording magical knowledge.
As mentioned before, mages were unlike Espers, who possessed only a single ability. Their methods were endless, and dealing with them required corresponding measures.
Index had been born for that purpose.
If one knew every form of magic in the world, then one would also know how to deal with every form of magic.
Thus, in order to fight mages, the first thing Necessary Evil Church needed to do was research magic and devise winning strategies.
To that end, Necessary Evil Church came up with an idea.
They would create a library that recorded all magical knowledge in the world.
As it happened, Index possessed