Why Ainz descended into madness had to be explained from a few days earlier.
Ainz sat upon the throne of the Great Tomb. Green light that calmed his mind flashed over him again and again, yet it could not restrain the despair and fear in the heart of the undead ruler.
"What kind of power was that?"
Ainz muttered a question to himself. Having only ever played games, he compared the Emperor's immense power contained within the Dionysian Spear to game items and found that even World Savior, a World-Class Item whose range covered the entire world and could harm all targets with negative justice, paled in comparison.
As the Depiction of Nature and Society burned away, Leman Russ emerged from the illusion with the Dionysian Spear in hand. Ainz witnessed an utter massacre. The Guardians he regarded as his children were so powerless before Leman Russ that, no matter what they tried, they could not defeat him.
At least... I can still revive them, can't I?
Ainz was weighed down with sorrow. Mare, who had already been revived, once again took out the Great Tomb's gold coins and piled them before Ainz's throne.
There were so many gold coins that neither mountains nor seas could describe them. The stacking penalty for reviving so many Guardians at once was simply too great. Coins had been piled from Ainz's feet all the way beyond the doors of the Throne Room. Even considering the Great Tomb's treasury, the price of this resurrection was excessively heavy.
But... the Great Tomb had already burned everything it possessed for this war.
The Far Eastern Cliff was their strongest line of defense against the Imperium of Man. To turn it into a mire that would wear down the Imperium's armies, Ainz had offered up everything