Pro. -
Jeon Jungkook, 18 years old, popular, goes to Bora High School, tsundere
Kim Yeo-ju, 19 years old, good and model student, goes to Bora High School
Jeong Ye-woon, 19 years old, model student, look at the female lead friend
Park Jimin, 18 years old, cute and popular
Kim Taehyung is not a model student, but a 19-year-old housewife.
You'll get to know it little by little.. It's not because the writer is annoying