Demiurge/Albedo - Intelligence

Clearly the gods themselves had lavished her with these gifts—it seemed to be the only possible explanation. Her ideas, apparently composed of flashes of inspiration, were the result of considering countless fragments of information with her shocking perception.

There probably wasn’t a single other person who could match Renner on the entire continent.

Or if there was someone who was her equal, they wouldn’t be human. Still, even among races that surpassed humans, beings able to rival her were extremely rare.

In Nazarick, the only ones near her level were Albedo, the captain of the guardians, capable of overseeing all the minions on every level, and Demiurge, who possessed a wealth of demonic wisdom with a particular gift for strategy, domestic and foreign—essentially any facet of nation building.

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Volume 6, Chapter 7.2