What is Arpeggio of Blue Steel?#
Arpeggio of Blue Steel (also known as Aoki Hagane no Arpeggio) is a gripping blend of science fiction, military strategy, and drama. The story takes place in a world where humanity has been driven from the seas by a mysterious force known as the “Fleet of Fog,” a collection of ships equipped with devastating superweapons.
Seventeen years after humanity’s defeat, the tide begins to turn when Gunzou Chihaya and his crew take command of the I-401. Alongside Iona, the I-401’s “Mental Model” (a human personification of the ship), they engage in a high-stakes war against the Fleet of Fog. If you enjoy themes of conspiracy and military conflict mixed with a bit of romance and the classic “tsundere” character archetype, this is a series for you.
You can watch the anime on Prime Video to see the battle for the oceans unfold.
Is the Anime Really Finished?#
Whether the story feels “finished” depends on how much of the narrative you want to consume. While there are multiple anime releases, including the original adaptation and subsequent remixes or related entries, the core of the story resides in the manga, which has been serialized since 2009.
If you watch only the anime, you will experience a significant portion of the conflict, but for those seeking the full scope of the conspiracy and the complete conclusion, the source material is essential. Recent news from November 2024 indicates that the Arpeggio of Blue Steel manga and the Takao-bu spinoff are still active (though currently on hiatus due to the artist’s injury), confirming that the written story extends beyond the televised adaptations.
To get the complete story, we highly recommend you buy the Arpeggio of Blue Steel manga.
Recommended Watch & Read Order#
Because of the way the anime was released—featuring a remix and related content—the order can be confusing. Please refer to the relationship tree below the article for a visual map, but here are the best paths for different types of viewers:
The Release Order#
For those who want to experience the series as it originally aired:
- Arpeggio of Blue Steel - Ars Nova (The primary adaptation)
- Aoki Hagane no Arpeggio: Ars Nova DC (A remix of the story)
- Aoki Hagane no Arpeggio: Ars Nova Cadenza (Related content)
The Completionist Order#
If you want every piece of animation available, follow the release order above. This ensures you see the original adaptation, the remixed version, and the additional related content.
The Story-First Order#
For those who aren’t afraid to dive into the source material to ensure they don’t miss a single plot point:
- The Arpeggio of Blue Steel Manga: Start here for the most comprehensive narrative experience.
- Arpeggio of Blue Steel - Ars Nova: Watch the anime to see the battles brought to life.
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Final Thoughts for New Viewers#
Arpeggio of Blue Steel is an excellent pick for fans of naval warfare and sci-fi mysteries. Between the strategic battles and the developing relationships between the crew and the Mental Models, there is plenty to enjoy. While you’re diving into the world of the Fleet of Fog, you might also want to pick up some Arpeggio of Blue Steel merchandise to complete your collection.
Arpeggio of Blue Steel • manga • 2009-09-30 (serialized in Young King Ours)
└─(adaptation)→ Arpeggio of Blue Steel - Ars Nova • anime • 2013-10-07
└─(remix)→ Aoki Hagane no Arpeggio: Ars Nova DC • anime • 2015-01-31
└─(related)→ Aoki Hagane no Arpeggio: Ars Nova Cadenza • anime • 2015-10-03
