The group of privateers known as the Blue Steel continues their mission to deliver blueprints of the Vibration Warhead Torpedo, a weapon that may turn the tides of war in their favor, to the United States. However, a new threat arises from their enemy, the overwhelming Fleet of Fog in the form of "The Student Council", a group of warships composed of the remaining Mental Models, the ships' humanoid avatars, who have yet to face the unpredictable captain of the Blue Steel, Gunzou Chihaya. As the Blue Steel gets closer to understanding the origins of the authority controlling the enemy, Iona's past reveals the beginning of the war and her reason for siding with humanity.
Unfortunately the movie Arpeggio of Blue Steel -Ars Nova Cadenza- is not yet available on HBO Max.
| Sound | Masato Kouda | Original Music Composer |
| Sound | Satoki Iida | Sound Director |
| Editing | Kiyoshi Hirose | Editor |
| Camera | Daisuke Okumura | Director of Photography |
| Visual Effects | Takehiko Matsumoto | Mechanical Designer |
| Directing | Seiji Kishi | Director |
| Visual Effects | Kazuaki Morita | Character Designer |
| Visual Effects | Daisuke Suzuki | Animation Director |
| Directing | Kohdai Kakimoto | Assistant Director |
| Art | Ayumi Miyakoshi | Art Designer |
| Sound | Yumi Uchiyama | Theme Song Performance |
| Writing | Koujirou Nakamura | Screenplay |
| Writing | Heart's Cry | Lyricist |
| Writing | Ark Performance | Original Series Creator |
| Writing | Chabo Higurashi | Screenplay |
| Writing | Ayato Shinozaki | Lyricist |
| Sound | Manami Numakura | Theme Song Performance |
| Sound | Sayuri Hara | Theme Song Performance |
| Writing | Makoto Uezu | Screenplay |
| Writing | Shigeru Morita | Screenplay |
| Sound | Mai Fuchigami | Theme Song Performance |
| Sound | Hibiku Yamamura | Theme Song Performance |
