Cosette never had the time for beauty, but she's quite the eye-catcher.
Cosette is a mature young woman. She's quite a powerful Enhancer, though she tries not to say she's good at anything for fear of not being good enough. She's respected yet feared as she sometimes lashes out at those near her based on her past.
Cosette was born in a normal family, as an only child. Her parents were abnomally normal, striving for normal grades, normal everything. Cosette felt as though she needed to excell in everything, just to show her parents she was exceptionally smart, which she happened to be.
When Cosette was in her third level, she got all 100s on all her tests. This was the time when her parents were sidetracked with work and chose to ignore her for a little bit as she flourished underneath her teacher's eyes. Her parents were stunned.
Carefully, they treaded to the 'over achieving parent' personality, dragging Cosette under with them. She became a robot, a machine. She was forced to get excellent grades in everything.
This forced Cosette to become weak. Her whole world crumbled, but her parents grew stronger and stronger. They weren't phased as Cosette manifested as a Enhancer. They just made her work harder. Cosette fell into a whole other realm of hurt and weak.