Name: Emily Melissa Karn
Aliases: Emily has no real nicknames. Certain particularly helpful people from a few years ago called her "Freak".
Age: 15
Powers/abilities: Emily can quickly make a series of incredibly accurate predictions despite the almost impossible calculations required with so many variables. This allows her to be more proactive, rather than reactive, in combat, as she can make more and more reliable predictions as her ability grows (if the explanation was unclear, think of the ability Sherlock demonstrates in several combat scenes in the Sherlock Holmes movies, in which time stops while Sherlock describes how he will fight).
Height: 5'8"
Appearance: Emily has light hair and light eyes, the former being blonde and the latter blue. She is quite thin and lightly built, though not unhealthily so. Typically, she'll be dressed with her appearance in mind, but more as an afterthought than as a serious consideration. Emily also uses a similar philosophy with her makeup, using some but only a little, and will often have her hair in a high ponytail.
Personality: Emily has a strange psychological issue, believed to be caused by certain hormone glands being damaged either prior to or soon after her birth, which stops her from feeling compassion. She is aware of society's rules and expectations, meaning she knows what she should and shouldn't do, and many make sense to her from a logical perspective. However, she is never motivated by guilt or morality alone; her situation is comparable to that of a nonviolent psychopath.
A large part of the rest of Emily's personality comes from this, sometimes in unexpected ways. For example, she enjoys reading, especially first person, because it allows her to better understand how other people think. She is also very objective when it comes to decision-making, as she can't experience several of the motivations other people can, so logic takes the lead. She has had to gain skill in self-control, or her lack of empathy could lead her to hurt someone.
As for things unrelated to her disability, Emily is naturally very self-confident, independent, and introverted.
History: Emily was the daughter of Joseph Wram and Maria Karn, the former being a horrible, harsh man who Maria divorced while she was six months pregnant with Emily. When she told him of her intentions to do so, he lashed out in anger, striking her in the heads with a vase that caused severe blunt trauma and lacerations, and causing damage to Emily when Maria fell, which lead to her present disability. It didn't take long for Joseph to be arrested and imprisoned, and the divorce to take place.
Growing up was hard for Emily. She had to simultaneously face the difficulties of having a single parent, which lead to relative poverty, and the difficulties caused by her disability, which didn't get diagnosed for a very long time, because Maria could not afford it. Mistreatment by other students for being different eventually lead to a teacher, Mr. Jordan, getting involved, who ended up paying for her to have an examination. The bullies stopped once they found out what caused Emily's behaviour.
This helped Emily come to terms with who she was in the future. She has recieved additional help at school, including advice and therapy. It's almost a shame that Emily will never be able to appreciate it.