The film begins in the present, with its heroine, Kaoru, a grown-up woman working as a real-estate agent, while helping out the folksy proprietor of a neighborhood fishing pond. There she meets a shy girl who needs her help baiting a hook and reminds her of herself in the fourth grade.
You can now watch Dog in a Sidecar online on the following streaming providers in the United States.
| Directing | Kichitaro Negishi | Director |
| Writing | Akiko Tanaka | Screenplay |
| Crew | Masami Inomoto | Cinematography |
| Writing | Yu Nagashima | Original Story |
| Editing | Toshihiko Kojima | Editor |
| Art | Shinichi Miura | Production Design |
| Writing | Katsuhiko Manabe | Screenplay |
| Sound | Tsugihiko Sasaki | Music Director |
| Sound | Wataru Ookuma | Music |