After losing his parents, a young bear named Yamataro is chained as an attraction of a small kiosk near a train station. There he is encouraged by a C-62 train to runaway from the humans and become free.
| Actor | Role |
|---|---|
 Eiko YamadaYoung Yamataro (voice) | Young Yamataro (voice) |
 Hiroshi TakemuraOld Yamataro (voice) | Old Yamataro (voice) |
 Hitoshi TakagiShi-roku (voice) | Shi-roku (voice) |
 Kenichi OgataKuro (voice) | Kuro (voice) |
 Miki ItoBaby Yamataro (voice) | Baby Yamataro (voice) |
 Miyoko AsoWoman (voice) | Woman (voice) |