Choi Ki-dong, who becomes a teacher, and Park Young-jun, who becomes a gang member, meet again after 10 years. To compete for Min Ju-ran, they start a fierce battle remembering their high school days, when the situation was completely different.
Park Young-jun
Choi Ki-dong
Min Ju-ran
Min Jin-seob
Cheon-soo
Deok-seop
Mr. Park
Neop-chi
Serviceman
Joon-hyeong
Horseshoe
Jane Hak-doo
Minion
Hyeok-su
Friend
Teacher
Cheon-soo's minion
Police
Gil-nam's Henchman 1
Gil-nam's Henchman 2
