Back in school, Jae-woo and Hyun-min shared a bond that made them feel special—more than anyone else. Hyun-min receives a meaningful gift from Jae-woo and is certain it’s a mutual green light. But when he sees Jae-woo giving the exact same gift to another girl, Hyun-min becomes convinced that Jae-woo is just a fickle little swallow, and the two drift apart. Six years later, they reunite at a class reunion, but Hyun-min still finds Jae-woo suspicious. Then… "Sunbae, the last train’s gone. Could you let me stay just one night?" Seriously… how can someone be this shameless?