This single of BUMP OF CHICKEN is the theme song of the film "Always Sanchome no Yuhi '64." Its third tracks is an instrumental version of the title song arranged by Naoki Sato. This edition includes a bonus DVD with a short movie "Good Luck" and a music video of the title song both directed by Takashi Yamazaki (the director of the film). *The DVD disc is encoded for region 2 (Japan, Europe, and Middle East), and no subtitles are included.