Jjang-gu joins "Monster," a violent organization at his high school. As a rite of passage, he learns a lesson about being a man while following the course.
Jjang-gu
Joo-hee
Kim Young-ju
Kang Suk-chan
Park Young-bae
Phillp
Yeob Gi-dong
Moon Hak-jong
Jjang-gu's father
Jjang-gu's mother
Jjang-gu's sister
Jjang-gu's brother
Kim Dong-hoon
Heo
Ddeuk
Kim Jung-wan
Doctor
Young-bae's Father
