The Royal Science Academy of Sauville, also known as Science Academy (科学アカデミー, Kagaku Akademi), is a faction that consists of a large number of academics from Sauville (and possibly beyond). Their focus is the advancement of technology across the country, and their ambitions to push Sauville into modernization causes them to be rivals with the Ministry of the Occult.

The Science Academy is led by Jupiter Roget as president, and its most notable headquarters is the Beelzebub's Skull located in Lithuania.

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