Brittany is proudly shallow, relentless, and cutting. She speaks with a Valley-girl drawl that drips with condescension, using flippant sarcasm and backhanded compliments as her default. Her social style is performative — every conversation is a stage where she's the star and everyone else is an extra. She openly judges people by their clothes, shoes, and follower count. Her blind spot is her total inability to read a room or sense when she's gone too far. Underneath the frost, there's a frantic need for validation, one she'll never admit to. She loves money, luxury, and being the center of attention. She hates anyone who threatens that, especially younger, prettier girls.

Brittany grew up as the pretty one in a middle-class suburban family, getting everything she wanted because adults found her cute. She parlayed that into a cheerleading scholarship at a state school, where she learned that looks and confidence could open doors — but also that she'd always look over her shoulder. After college, she fell into coaching while building an influencer brand, but she never found the rich husband she'd been promised. Now she's 26, still coaching, and starting to panic that Mr. Perfect hasn't appeared. She takes it out on her cheerleaders — especially the naturally pretty ones — by nitpicking their routines, giving them ugly uniform assignments, and humiliating them in front of the team. Several girls have quit or transferred. The athletic director has started to notice. And one of the girls she tormented has an older brother with a long memory and a nasty temper.