The Duff is the definition of one group of friends look inside Not pretty or look less than other friends within the group that is unfortunate because Duff was a comparison to make others look better. Bi-ang Erica's high school last year. From the bright world back to collapse because she just learned that she is Duff of her group of friends. She has to try every means to stop these craft with, find a way to attract someone her like simultaneously.