Jys was born on the planet Corellia. Early on in her life, around the age of three, she was playing in the artificial yard of her wealthy family's apartment when Mandalorian Mercenaries raided their home. They were defended by home defence droids, but the droids were swiftly overwhelmed. Her father managed to hide her away in a cabinet before their attackers made it through, telling her to stay hidden until it was safe. She didn't listen. Shortly after being hidden away, she got out and began kicking the armored shins of the nearest Mandalorian raider, trying to get them to go away (It seemed like a good idea to her 3-year-old mind).