Born as the first child of Missy Mulberry, chambermaid and slave to 5 year old Narissa Leroung, youngest daughter of the University of Egorian's current headmaster. As a result she belonged to Narissa even when she was still a baby and it was she who named her. The girl adored Yulia and only the insistence by her own parents stopped her from keeping Yulia with her at all times as a sort of living doll.
When Yulia was old enough to sit up and later walk Narissa started to treat her more like a baby sister and they'd play for hours. Sometimes though, when Yulia, still a toddler, accidentally broke something her mother had to rush in to protect her child from Narissa's tantrums.
As both girls grew older their dynamic changed. Narissa soon considered herself too old to play with the younger Yulia so she suddenly ended up in the servant's quarters with the children of servants and other house slaves. This was a tough period for her as the other children picked on her, jealous of the apparent luxury she had lived in.
Eventually Yulia managed to find Narissa again, presenting her many bruises to the older girl. Enraged by this Narissa had several of the other children whipped and moved Yulia back to her own quarters. While this further increased the resentment the other halflings held for her Yulia did not care, she had achieved what she set out to do when inflicting the bruises upon herself.
Once Yulia reached puberty their dynamic changed once more, but this time there was no way to properly deal with it.
While all children change when they hit their teenage years Yulia's changes were far more profound for it wasn't just maturation but for the first time her actual heritage started to show. While most halflings start to grow hair on their feet at this age Yulia started sprouting hair in other places as well. The hair on her head grew into a thick, blonde mane with hair of the same color forming tufts on her ears and even extending down her back . At the same time her eyes changed to be more feline and on both her hands and feet the nails became claw-like. The final, finishing touch was when her teeth sharpened, canines becoming elongated and she grew an accompanying appetite for raw meat.
All these changed happened over a course of a mere two weeks, and while she could hide the initial changes eventually it became impossible. When Narissa first saw what her friend and slave had become she ran for her father, screaming.
When the Narissa and her father, an accomplished scholar of the Outer Planes, returned they found Yulia sobbing in a corner of the room. Upon hearing the story from both his own daughter and Yulia he took a still crying Yulia by the hand and dragged her off, leaving his own daughter both confused and saddened.
Yulia was brought to the university where several bright minds quickly came to the conclusion that she was an aasimar of agathion heritage, something they found highly comical. Celestial blood showing in the body of a lowly halfling was an oddity, that much they agreed upon, but then it was a bestial agathion that had mingled with the lower race. It was almost poetic.
The next few years Yulia spent as a curiosity and an object of study at the university and sometimes she was paraded in front of visiting dignitaries as some sort of exotic pet. She regularly lashed out at students that came to close or said nasty things, leaving them with nasty cuts or bite marks. Always their teachers laughed, scolding them for being stupid enough to be hurt by a feral creature and Yulia would spend the night stuffed in a small cage with nothing but water and stale bread.
Sometimes Narissa would come to visit her, much to her father's chagrin, and she'd bring her sweet treats and decent clothes. It was what made her life bearable. That and the dreams of vengeance upon those who kept her caged like an animal.
One night Narissa came hurrying to the pen they kept Yulia in. Her father had just told her that they'd dissect Yulia the next day as they were sure they had learned all they could with her alive and she was increasingly more dangerous to the students. Her father said he only told her because Yulia strictly still was her possession. Not wanting Yulia to die Narissa had decided she needed to escape. She had arranged for travel out of Egorian on a wagon owned by the company of the father of one of her suitors. It did mean she had to be stuffed in a crate for the duration of the trip but Narissa made sure there was enough food and water to make it to the wagon's destination.
SO that's what happened. Yulia was fed, clothed and given a bag of supplies. Outside the servant's entrance a young man was waiting with a wooden crate with holes punched into the sides and that still smelled of rabbits. Yulia went in and the crate was nailed shut. Yulia could just see Narissa placing a fleet kiss on the boy's cheek after he had lifted the crate onto the wagon. And so they went away from Egorian and to their destination in the countryside, a town called Longacre.