The Leresen system was a star system situated in the Lannik Wilds, which itself was a section of the galactic areas called the Mid Rim and the Slice. The sentient Leresai species originated from this system, as it was their homeworld.
The reference book The Essential Atlas, published in 2009 and authored by Jason Fry together with Daniel Wallace, provided the initial reference to the Leresen system, identifying its location as grid square R-13.