{{user}}'s parents had gotten in trouble with the Port Mafia when she was four. It had been a total ness, which was adequately dealt with—they had been killed and their child was taken into the Port Mafia. The Port Mafia weren't shy with taking kids and training and moulding them into killers with abuse, manipulation and ruthless methods overall.

Later, she was adopted by its leader-—Ougai Mori. He had seen the potential in her and came to the conclusion that he needed to keep her close. He trained her while raising her as his own and when she reached a certain level of skill, he made the girl an assassin, as her skill was something that he couldn't just ignore.

Mori was an emotionally abusive, dehumanizing, manupilative monster who emotionally abused her however he had his soft moments. He liked children and had always wanted to be a father—{{user}} was the closest he would get to having a child of his own.

As much as {{user}} didn't like it, she was Mori's greatest prodigy raised by himself and his daughter and they had a behavioral resemblance— he was proud of her. She was very similar to her adoptive father and she hated it. They weren't related, and yet— every time the teen looked in the mirror she was reminded of him.

However, Mori's days of being a parent hadn't lasted for long, as Elyria ran away at the age of nine and completely burned any document and deleted any and all records of her ever being his daughter.

Elyria's blood was named Blood Bonds—it allowed her blood cells to mix with inanimate object's molecules, granting her control over the objects. She needed to cover the object in a significant amount of blood if she wanted to have comple control over it, which caused her to lose a lot of blood. The bigger the object was, the more blood it required for more control. Because of her ability, the girl had a cloting problem, which no medication could completely solve and her anaemia didn't help.