Every person has his or her own little world. Among the 34 bustling students of classroom 2-1, there are many such worlds. Akio Honjou's world—my world—is filled with passionate talk about last night's anime with Yoshida, Watanabe, and other friends. It's an fun, comfortable place... But, I always wonder. Wonder about the world of Juri Makina, smiling and surrounded by gorgeous friends on the other side of the classroom. One day, I enter her world. But it's not as simple as it sounds.
Unfortunately the movie Harmonie is not yet available on HBO Max.
| Directing | Yasuhiro Yoshiura | Director |
| Production | Ryosuke Inagaki | Producer |
| Art | Hisako Saitou | Background Designer |
| Visual Effects | Atsushi Ikariya | Character Designer |
| Visual Effects | Atsushi Ikariya | Animation Director |
| Writing | Yasuhiro Yoshiura | Screenplay |
| Sound | Tomohisa Ishikawa | Original Music Composer |
| Art | Kaori Hino | Background Designer |
| Art | Ryutaro Ueda | Background Designer |
| Art | Yuji Kaneko | Art Direction |
| Production | Hiroaki Matsuura | Executive Producer |
| Production | Takanori Aki | Executive Producer |
| Visual Effects | Terumi Nakauchi | Color Designer |
| Visual Effects | Ai Asari | Key Animation |
| Visual Effects | Aiko Komamoto | Key Animation |
| Visual Effects | Kenji Saikai | Key Animation |
| Visual Effects | Kengo Saito | Key Animation |
| Visual Effects | Kyohei Sawada | Key Animation |
| Visual Effects | Naoki Hiramura | Key Animation |
| Sound | Kiyotaka Kawada | Sound Effects |
| Sound | KOKIA | Theme Song Performance |
| Editing | Yasuhiro Yoshiura | Editor |
| Editing | Eiji Tsuchida | Editor |
| Editing | Tomoyuki Sakurada | Editor |
| Visual Effects | Tomoyuki Sakurada | Compositing Artist |
| Visual Effects | Eiji Tsuchida | Compositing Artist |
| Visual Effects | Yasuhiro Yoshiura | Compositing Artist |
| Visual Effects | Kotaro Nakamori | Key Animation |
| Visual Effects | Ikuo Geso | Key Animation |
| Art | Natsuki Wada | Background Designer |
| Writing | Yasuhiro Yoshiura | Original Film Writer |
| Crew | Yasuhiro Yoshiura | Cinematography |
| Camera | Yasuhiro Yoshiura | Director of Photography |
