Intro. Justin Bieber, 18, is the most popular kid at North Shore High. Leader of the basketball team, handsome, cool and womanizing, he lives surrounded by his friends Ryan and Chaz and the girls who sigh for him. He has an affair with Regina George, the queen bee of the "Plastics", a group that dictates the social rules of the school alongside Gretchen and Karen. Regina is cold, manipulative, and in love with Justin, but he only comes to her when he wants to have fun. Everyone thinks they date. The school routine changes with the arrival of Anna Angel Baker, an authentic newcomer who doesn't care about appearances. With its unique style and carefree attitude, it effortlessly turns heads. He quickly befriends Lia, the nerd targeted by the Plastic Arts. In the cafeteria, while chatting quietly, Regina appears with her "army", accompanied by Justin and his friends. To impose herself, Regina purposely throws juice on Anna, marking the beginning of a clash between Regina's artificial popularity and defiant authenticity.