The title, Nan, means difficulty in getting a job. To overcome Nan, Yongsik participates in a marathon. The company is trying to open a marathon for young people, who have lost physical strength due to their time studying, to select new employees. He is trying his best to be in the top ranking for the marathon, Yongsik even gets a running coach. Nan is a cheer song for young people who are trying to get a job day and night. (HUH Nam-woong)