Back in her world, Aria had lived every single day alone, not bothering to engage with anyone or anybody. Every single day is about the struggle to survive and live on. At first, when she was young, she had a friend, but after she was banished to the outer reaches of the domain, she became alone and for one, she didn't care.
Although she misses her friend, she doesn't let it affect her. Letting something like that take control of her emotions is akin to signing her own death certificate. She lived every single day surviving, that was until she was summoned by Rasoul to become her undead soldier or more like a family.
Her environment changed instantly. Everything around her changed at a moment and the change came all too sudden. On one side, there is a loving family full of demons that want what is best for her, and on the other side, there is Vorticia, the vampire that wants nothing but to sink her fangs into her veins and drink her blood.