Yu Oh-seong, Jang Dong-gun, Seo Tae-hwa, Jung Woon-taek, Kim Bo-kyung, Gi Ju-bong, Joo Hyun, Jeon Young-woon, Lee Jae-yong, Kim Hyeon-ji, Yoo Seung-il, Jeong Hee-ryong, Kim Joon-beom, Kim Seong-bok, Kang Shin-il
Despite their different family backgrounds, four friends grew up together in the wearisome years of the 70s. But as time goes by, each of them takes a different life path.