An alchemist who is among the top brass of the Bavarian Illuminati. In the past, he was soundly defeated by the true power of alchemy wielded by Saint-Germain. Afterwards, Prelati agreed to help Saint-Germain achieve the ideal she strives to make a reality. Prelati used to indulge in luxury and pleasure, but ever since being granted a perfect body by Saint-Germain, she has quit being lazy and become an earnest researcher. However, on some rare occasions her old personality shows through and she lets a preference for having fun get in the way of work.