Reerez, situated at grid coordinates K-5 on the Standard Galactic Grid, existed as one of the quartet of planets within the Mygeeto system. This system resided in the Albarrio sector, a region spanning both the Outer Rim and New Territories. Reerez itself was an airless, rocky body possessing moons, positioned in a closer orbit around the star known as Malola.
The initial mention of Reerez within the updated Star Wars canon occurred in the forty-fifth issue of the Star Wars: Build the Millennium Falcon magazine by De Agostini, which saw publication circa November 11, 2015. Conversely, the planet's introduction to the Star Wars Legends timeline took place in The Essential Atlas, a reference work from 2009 penned by Jason Fry in collaboration with Daniel Wallace.