Nabrina's mother was sold to Nero the Hutt shortly after becoming pregnant with her, and it was in his position Nabrina spent the early years of her life.
When Nabrina was entering her teens, Nero sold her and her mother to a human by the name of Ankara Fimid. Their new owner took them around the outer rim, hiring Nabrina's mother out to various cantinas to work as a dancer, while Nabrina cleared tables and served drinks.
While they were travelling, Nabrina practiced a variety of dances and performances, taught to her by her mother and various other performers they met.
By the time she was old enough to perform however, Narbina was brought by a third owner, Kog Dumde. Kog was far nicer than either of her previous owners, and had far bigger plans for her. Rather than entertaining individual rooms of criminals and lowlifes, Kog wanted Narbina to entertain the rich and powerful all across the galaxy. He did this by recording holovids of her, under the stage name Ovasu, and promoting them by having her perform at parties for the galaxy's most influential.
When Kog died, he left Ovasu her freedom in his will. Unfortunately to the criminals he was indebted to over his serious gambling addiction, this meant he'd also left her his debts.