Simplify the following text for a Grade 15 native English-speaking person.
Original: The show followed the lives of a group of teenagers living in the upscale , star-studded community of Beverly Hills , California and attending the fictitious West Beverly High School and , subsequently , the fictitious California University after graduation .
Simplified: The show followed the lives of a group of teenagers living in the upscale , star-studded community of Beverly Hills , California and attending the fictitious West Beverly Hills High School and then-fictitious California University .