The arrival of new music teacher makes a big difference for a group of troubled high school students.
Cha In-pyo
Song Yun-ah
Hong Kyung-in
Jang Hyuk
Park Eun-hye
Yang Dong-geun
Kim Min-jung
Kang Rae-yeon
Seo Gap-suk
Seo Tae-hwa
Kim Joon-hee
Kim Seung-hyun
Lee In-Seop
