The arrival of new music teacher makes a big difference for a group of troubled high school students.
차인표
Hwang Gi-pung
송윤아
Song Na-young
홍경인
Na Gi-chan
Jang Hyuk
Le Se-bin
박은혜
Yoo Hye-ri
Yang Dong-geun
Jong Gu
김민정
class president
강래연
서갑숙
서태화
김준희
Lee Sang-mi
김승현
이인섭
Hammer
