Kazunari Katsuki (Gaku Sano) lied to his classmate that Tokyo stinks. Because of his comment, he goes to Tokyo alone. On his way back, he misses his flight back to Kumamoto. Kazunari only 3,400 yen in his pocket. He becomes confused about his missed flight. At that time, Masami Tanaka (Kaoru Sugita), who works at an airport souvenir shop, talks to Kazunari. On Kazunari's unusual trip back to Kumamoto, he meets many different adults and begins to think about his life.
| Actor | Role |
|---|---|
 Gaku SanoKazunari Katsuki | Kazunari Katsuki |
 Kaoru SugitaMasami Tanaka | Masami Tanaka |
 Kyusaku ShimadaJun Shimazu | Jun Shimazu |
 Shinya TsukamotoSousuke Akiyama | Sousuke Akiyama |
 Yuu TokuiOfficer Ota | Officer Ota |
 Masahiro TodaSatoshi Wada | Satoshi Wada |
 Miako TadanoNorie Mikiyoshi | Norie Mikiyoshi |
 Tsubasa TakizawaRyohei Yanagishita | Ryohei Yanagishita |
 Kazue TsunogaeTomie Yanagishita | Tomie Yanagishita |
 Hiro KomuraYuko Katsuki | Yuko Katsuki |
 Tomiyuki KunihiroMichihiko Kunihiro | Michihiko Kunihiro |
 Issey OgataYoshiharu Yanashita | Yoshiharu Yanashita |