Ages 0 - 23 Life before the outbreak
Born second to middle-class parents, there wasn't anything much she wanted. Neither did she have many aspirations, unlike her older sister whose interest fluttered between one thing to the next. Due to her lack of interest in most things, Seryna was diligent in following the norm, studying well, and aiming to live her life as much as she could like the rest of the populace.
Then came a time when, like many girls her age, when Seryna was more focused on her appearance and more interested in dating boys than studying. It was how normal people would live their life. She wasn't the prettiest but she had great looks and she breezed through short unserious relationships like a pro. There weren't many expectations from her either, so Seryna continued to drift through this normalcy with acceptance and ease.
Ages 23 - 93 Contraction of the Virus
Seryna created a career out of her voice, her family connections and her innate talent allowed her to be Sydney's Opera House's sought-after Sopranos. She was on a tour in the Americas when the virus outbreak started and caused pandemonium.
She hardly remembered the time between she was bitten to the present, but it sometimes comes to her in the forms of nightmares. It took a while for her to wrap her head around the fact that she had killed so many and until now, she suffers extreme guilt over it.
Ages 93 - 103 Life after the Virus to Present
Seryna came back to her "human consciousness" around two years ago. She had desperately searched for her family members and found that her older sister's daughter still lived in the Stronghold. However, unable to explain how she still lived despite being over a hundred, Seryna instead attached herself to various drifter communities at the outskirts of the Stronghold.
She found her salvation through Augustine Dupont, a playwright, and musician, and a mutant Infected like herself. He had found her singing her Old World arias and pulled her into joining the Silverlight Opera House. It was through him and his connections, that she was able to enter the Stronghold.
Seryna became a bit of a sensation but due to her guilt over her sins, she was quite reclusive and declined any offers to perform outside the Opera House. When not performing, she mostly kept herself within the housing provided by Augustine and his backer, only leaving it to visit a club named, River Styx, and/or to occasionally venture to the outskirts as part of a charity program.