The reason why the monsters inside this Splendid Cathedral are so powerful is because those originally inside the cathedral desecrated the Holy Light, which is itself an external manifestation of corruption.
Don't forget, the Corrupt Lady is a Divine Conceptual.
Corruption of the physical body is needless to say, but corruption of the soul, thoughts, and mind are also corruption.
Thus, those Holy Light Clergy who should advocate truth, goodness, and beauty, those cathedrals that should be the Holy Light Sacred Land, have, due to some external reasons, become no longer holy, no longer pure.
This is also a form of corruption.
And these phenomena of corruption are the nourishment on which the corruption nest survives.
The cathedral in this city and the clergy inside are more seriously and thoroughly corrupt, so the situation is quite severe.
But I just looked at the roster, and if it's not mistaken, only five are more severe than this city in the whole Empire.
