Hae-hyo and Jea-moon were very good pals in college, eventually going their separate ways after falling in love with the same girl. They have not seen or heard from each other ever since. As time passes and Jea-moon approaches middle age, the memory of his college life becomes ever more refreshed, and begins to haunt him more and more frequently. At this moment, a strange girl, So-dam, not only intrudes into his quiet second-hand bookstore, but also disturbs his life, urging him to set out on a long journey to Japan to look for Hae-hyo. In Japan, when three of them finally meet in a local pub, can the problems of their past be reconciled?