After a young boy captures a rare butterfly in Nagasaki, a caterpillar begins a relay-trip toward the northern tip of Hokkaido, serving as a silent witness to a series of vignettes featuring people struggling with the psychological and social scars of post-war Japan.
| Actor | Role |
|---|---|
 Mariko KagaNot listed | Not listed |
 Hiroyuki NagatoNot listed | Not listed |
 Shoichi OzawaNot listed | Not listed |
 Fumio WatanabeNot listed | Not listed |
 Kyū SazankaNot listed | Not listed |
 Rokkō TouraNot listed | Not listed |
 Toshie KimuraNot listed | Not listed |
 Yukio NinagawaNot listed | Not listed |
| MMasahiko NaruseNot listed | Not listed |
 Hōsei KomatsuNot listed | Not listed |
 Kunie TanakaNot listed | Not listed |
 Takeshi KusakaNot listed | Not listed |
| HHiroshi MizushimaNot listed | Not listed |
 Sumiko SakamotoNot listed | Not listed |
 Kazuhiko KasaiNot listed | Not listed |
| KKeisuke TateNot listed | Not listed |
 Eijirō TōnoNot listed | Not listed |
 Nobutaka MasutomiNot listed | Not listed |
| TToyoko IwasakiNot listed | Not listed |
| TToshiya SugitaNot listed | Not listed |
 Koreya SendaNot listed | Not listed |