Shelby is the main antagonist of Neighbors 2: Sorority Rising.
Shelby is a college student who wants to party hard along with her two best friends Beth and Nora who got kicked out by the president of Phi Lambda. Their goal is to start and maintain a sorority. They start an off-campus sorority called Kappa Nu and hold slumber parties in a house which is next to the house that Mac and Kelly Radner are trying to sell.
Shelby faces challenges in trying to maintain the sorority, such as making enough money to pay for the house rental while the neighbors are interfering with the sorority's attempt to raise money and causing damages that would make the sorority spend the money that it has raised.
She informs the cops on several drug dealers in order to eliminate the sorority's competition.
Mac and Kelly need help from Teddy, who was still heartbroken over Pete getting engaged and needing to make room for their apartment for his fiancé Darren.
Eventually, she and her friends realized that both sororities and fraternities are sexist and consume too much drugs.