"The arrival of new music teacher makes a big difference for a group of troubled high school students."
Cha In-pyo
as Hwang Gi-pung
Song Yun-ah
as Song Na-young
Hong Kyung-in
as Na Gi-chan
Jang Hyuk
as Le Se-bin
Park Eun-hye
as Yoo Hye-ri
Yang Dong-geun
as Jong Gu
Kim Min-jung
as class president
Kang Rae-yeon
as
Seo Gap-suk
Seo Tae-hwa
Kim Jun-hee
as Lee Sang-mi
Kim Seung-hyun
Lee In-Seop
as Hammer
Seo Myeong-seok
Stunts
Kim Min-su
Yun-ho Yang
Director
Park Kye-ok
Writer
