- Country: South Korea
- Genres: Comedy, Romance
- Release: 2014-08-29
- Director: N/A
- Writers: N/A
- Language: Korean
- Stars: Yeong-kwang Kim , Jeong-se Oh , Yook Sung-jae , Ro-Woon Choi , Kim Mi-kyeong , Soo-jin Kyung , Da-in Yoo , Chae-mi Lee , Hyun Joon Kim , Kwon Ji-min
- Runtime: min
- Awards: 2 nominations
- AKA: Plus Nine Boys , Boys Whose Ages End in Nine , Age Ending in Nine Boy , Ninth Boy , ナイン・ジンクス・ボーイズ (Japan) , Ahobsoo Sonyeon (Korea) , Ahobsoo Sonyeon , Plus Nine Boys (United States of America) , Plus Nine Boys (United Kingdom)
- Plot: Follows the lives of a group of males whose ages are 9-years-old, 19-years-old, 29-years-old and 39-years-old.
- IMDB:tt4135374
Plus Nine Boys Cast · · · ALL
Kim Young-kwang
Kang Jin-gu
Jeong-se Oh
Gu Kwang-soo
Yook Sung-jae
Kang Min-gu
Ro-Woon Choi
Kang Dong-gu
Soo-jin Kyung
Ma Se-young
Da-in Yoo
Joo Da-in
Cho Rong Park
Han Soo-ah / Bong-sook
Chae-mi Lee
Jang Baek-ji
Hyun Joon Kim
Park Jae-bum
Kim Mi-kyeong
Gu Bok-ja