The Juvaini was an EF76 Nebulon-B escort frigate class ship that belonged to the Imperial forces.
This Imperial frigate, with assistance from the Metternich, launched an assault on the Maria, a vessel that was in the process of acquiring prototype B-wing starfighter models.
On its way to a prearranged rendezvous with the Imperial I-class Star Destroyer named Relentless close to Sunaj IV, the Juvaini, a Nebulon-B, was ambushed by starfighters from the Rebel Alliance.
Before the Relentless could reach the location to offer assistance, three B-wings from Blue group quickly eliminated the Juvaini, sealing the fate of the escort frigate.