With unassuming Bong Geun-dae on his side, Hwa-jin uses his special ops skills to handle a school gang and defend a student who just wants to study.
Jeon Bong-seok
Kim Hyeong-ju
Ok Jin-uk
Cho In-beom
Yoo Tae-joo
Park Seong-hwan
Lee Tae-hwan
Jang Kwon-hyuk
Seong No-jin
Principal
Byun Yun-jeong
Hyeong-ju's mother
