The Ropagu were a type of Near-Human people, and their home planet was Ropagi II.
This group of people were responsible for the creation of the Great Library, which held records spanning many thousands of years of Ropagu history.
Frequently, the Ropagu acted as hosts to the Kalduu, another species that also originated on Ropagi II; these two groups shared a longstanding, amicable relationship.