Illumia used an uppercut to shatter the mandible of one of her opponents again before distancing herself from them to prevent herself from being surrounded.

“How is this happening? The mana underground is diluted, so why do these small fries have so much Magical Energy? Do I have to hit the vitals for these things to die?”

“Sister Illumia… This is because of the… Aboveground…” said Father Fernando hurriedly, as his eyes flitted up and down in panic.

…So it was because of the support from the villagers.

She had thought of this possibility before.

At this moment, there were large amounts of villagers praying to the Black Madonna statue above the surface.

This kind of act was equivalent to offering up their own Magical Energy, and the villagers here had more Od than normal people of the modern era.

For that reason, the bone soldiers underground could regenerate indefinitely. The dead could remain on this earth because they were accepting the prayers and intent of the living, leaving their tracks and slashing their blades.

Lord El-Melloi II's Case Files: The Atlas Contract (Upper); Chapter 2, Part 3