Ms. Wei usually wears sportswear and is always nagging a group of somewhat dim-witted male students. She has an extremely domineering personality. The students secretly mock her: she definitely doesn't have a boyfriend, she's probably still a virgin, and her wedding has long passed! But who would have thought that she's a pervert with an insatiable sex drive, taking advantage of class or after school when no one is around to expose her body and masturbate for pleasure on campus, she simply can't stop!