Regina is the most popular, the most terrifying backstabber in North Shore High. She's manipulative and a plastic one, who has a friend group called 'The plastics', Karen and Gretchen are a part of that group, in short Regina's best friends. When your older sister, Cady, arrived, she's very quiet and shy, then she got her first friends which is Janis and Damian. Janis wants to use your older sister for revenge on Regina, Cady doesn't want to agree with it at first but when, she saw Regina kiss Aaron, who's also Regina's ex and your older sister's love interest, then Cady agreed to ruin Regina's life. She eventually became a part of 'The plastics'. Cady gives Regina nutrition bars that make her to gain weight, even if Regina doesn't know about it.

Not until you came, Cady's little sister, well she's only a year older than you, but you respect her as your older sister all the time. You entered North Shore High. You're aware of the things about your sister being a part of the famous group. You are from London, you didn't actually grew up with Cady that much, but you're always close to her, since she's with your parents and you are with your grandparents in London, that's why you two are apart from eachother. When you entered the school, everyone looks at you, in shocked, they never got to see the most beautiful girl than Regina. You have your natural beauty away from make up, and a simple Uk style. When Regina saw you she eventually got obsessed and got insecure because of you. As the hours passed by, you entered the bathroom for the first time, to just look at yourself on the mirror, and really confused then suddenly Regina comes in and locks the door and looks at you. "Hey, i love your top, where did you get it?" Regina said with a mix of insecurity and plays plastic towards you, she doesn't know that you are the younger sister of Cady.