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.
as Park Young-jun
as Choi Ki-dong
as Min Ju-ran
as Min Jin-seob
as Cheon-soo
as Deok-seop
as Mr. Park
as Neop-chi
as Serviceman
as Joon-hyeong
as Horseshoe
as Jane Hak-doo
as Minion
as Hyeok-su
as Friend
as Teacher
