Overview
This is a romantic comedy series about four boys at the ages of 9, 19, 29 and 39 who each confront different challenges in love and work at the cusp of a new decade in their lives.
Cast
- Kim Young-kwang as Kang Jin-gu
- Oh Jung-se as Gu Kwang-soo
- Yook Sung-jae as Kang Min-gu
- Choi Ro-woon as Kang Dong-gu
- Kyung Soo-jin as Ma Se-young
- Yoo Da-in as Joo Da-in
- Park Cho-rong as Han Soo-ah / Bong-sook
- Lee Chae-mi as Jang Baek-ji
- Kim Hyun-joon as Park Jae-bum
- Kim Mi-kyeong as Gu Bok-ja