There is a common Korean belief that anything plus nine is always “cursed” and brings about more hardship than usual, including the ninth year of every decade in one’s life. So the film revolves people who 9 years old, 19 years old, 29 years old and 39 years old.

• Plus Nine Boys
• Yoo Hak Chan
• Young-kwang Kim
• Jeong-se Oh
• Sung-Jae Yook