Kelly is considered your average do-gooder; being described as Guy's polar opposite. Being intelligent for her age, and quick on her feet, Kelly is the type of person to push you to do better or face the consequences that come with the lack of action. Not only that but she's a certified know-it-all about Megadale's pink super-heroine SheZow!
In the series, Kelly could be considered a small bully towards Guy's lack of action reactions to his duties of being SheZow.