Sexy and beautiful Shirley Darlington (Anna Faris) was once a bunny girl affiliated with Playboy. Before the age of 27, she lived a luxurious and carefree life. However, on the second day of her 27th birthday, she was kicked out by her boss. With no one to rely on and no other strengths, Shirley wandered around aimlessly and accidentally joined the Zeta Alpha Zeta, a sorority composed of girls such as Mona (Kat Dennings) and Natalie (Emma Stone). These girls were dressed in old-fashioned clothes and had weird personalities. They were like freaks in the eyes of other groups in the school. Shirley's arrival was like a catalyst. She used her rich experience to help the girls change their looks and create an appearance and temperament that attracted men's attention. The girls who were originally ignored began to be sought after, and Shirley also gained her own love...