The wonder of television dictates that when your student body reach the age of moving to college that a town can miraculously spawn and support a university. It’s a trait that Buffy holds true to and the elevation of the Scooby from high school seniors to university freshman is filled with the usual level of paranormal mischief. Not that the whole team have managed to get to the halls of higher education, either by not meeting the grade in education terms or even in not quite surviving the horrors of the Hellmouth.
The finale of Season 3 saw a double episode called not surprisingly graduation, the episode saw Buffy kill her first human as she decided to put Angels life over that of Faith. It was a moment filled with relevance and unlike when vamps are killed there was no dust cloud just blood. It was a poignant moment in the series and the fact it was all done in vein gave the story an extra level of drama. Of course in the end Buffy destroyed the Mayor and Sunnydale survived to continue being literally the gateway to hell.
So the move to college obviously allows for new characters and even more importantly new and even more imaginative enemies. This is highlighted best in the Hush episode. It’s a tale literally from the storybooks as a host of fairy-tale creatures steal the voices of the residents of Sunnydale. The whole episode is made even more theatrical by a little girl singing a rather spooky Rhyme which goes;
On the positive side (maybe) there is an anti-vampire group on campus, the question is are their motives in line with Buffy’s sensibilities. Obviously as the show goes on you get to find out more about the world of the University of California Sunnydale and there are the usual missteps by the Scooby Gang along the way. Especially from Buffy as she finds that her early days on campus are filled with difficulty both in classes and on her nightly adventures.