Utsumi and Seto's daily routine is to spend their afterschool hours just jabbering with one another along a riverbed. Getting excited over trivial word play, agonizing over the content of an email to be sent to a girl, and, at times, talking about a serious problem, the two endlessly engage in meaningless idle talk as if it were meaningful.
Unfortunately the movie Seto and Utsumi is not yet available on HBO Max.
| Directing | Tatsushi Ōmori | Director |
| Writing | Tatsushi Ōmori | Screenplay |
| Production | Dai Miyazaki | Producer |
| Crew | Fūta Takagi | Cinematography |
| Writing | Dai Miyazaki | Screenplay |
| Production | Takahiko Kondo | Producer |
| Directing | Katsumi Nojiri | Assistant Director |
| Editing | Ryo Hayano | Editor |
| Lighting | Keijirô Akiyama | Lighting Technician |
| Writing | Kazuya Konomoto | Comic Book |
