Four friends, Yong-bi, Ji-gong, Sang-woo and also Doo-man who just transformed twenty and also just came of age took the roadway to Pohang, a little city near the beach-- because one of the buddies, Sang-woo, is employing in the aquatic corps the day after. On the last day before Sang-woo goes off to the military, a life-altering event dawns before them. The 4 best friends now face a scenario past their control, and also are forced via an unalterable day.