Character
I-400イ400
- appearances
- 2
- appearances
- main roles
- 0
- main roles

I-400 at a glance
I-400 is a supporting character in Aoki Hagane no Arpeggio: Ars Nova. I-400 is voiced by Rina Hidaka in Japanese.
I-400: quick facts
- Role
- Supporting character
- First appearance
- Aoki Hagane no Arpeggio: Ars Nova (2013)
- Latest appearance
- Aoki Hagane no Arpeggio: Ars Nova DC (2015)
- Japanese name
- イ400
- Japanese voice
Rina Hidaka
Full Aoki Hagane no Arpeggio: Ars Nova cast👤 Most popular characters
Who is I-400?
Iona's triplet sister, who acts directly under Yamato's orders. I-400 is polite and completely loyal to Yamato. She's not very talkative - but is a good spy, both as a submarine and as a Mental Model - so that is something to be expected.
Biography excerpt via Kitsu.
I-400 in numbers
- Rank in Aoki Hagane no Arpeggio: Ars Nova
- #11
- of 19 characters, by favourites
- Appearances
- 2
- 0 as a main character
- On screen
- 2013–2015
- 3 years
Most-loved characters in Aoki Hagane no Arpeggio: Ars Nova
AniList favourites
- Narrator2,182
- Takao123
- Iona108
- Kongou46
- Haruna44
- Kirishima19
- Gunzou Chihaya16
- Iori Watanuki12
- I-4006
Show as table
| Item | Favourites |
|---|---|
| Narrator | 2,182 |
| Takao | 123 |
| Iona | 108 |
| Kongou | 46 |
| Haruna | 44 |
| Kirishima | 19 |
| Gunzou Chihaya | 16 |
| Iori Watanuki | 12 |
| I-400 | 6 |
Appearances by format
2 titles in total
- TV Series1 · 50%
- Movie1 · 50%
Appearances per year
New titles featuring them
Show as table
| Item | Titles |
|---|---|
| 2013 | 1 title |
| 2014 | 0 titles |
| 2015 | 1 title |
Appearances
More characters from Aoki Hagane no Arpeggio: Ars Nova
I-400 FAQ
What anime is I-400 from?
I-400 is a character in Aoki Hagane no Arpeggio: Ars Nova and appears in 2 titles in total, including Aoki Hagane no Arpeggio: Ars Nova DC.
Who voices I-400?
I-400 is voiced by Rina Hidaka in Japanese.
When did I-400 first appear?
I-400 first appeared in Aoki Hagane no Arpeggio: Ars Nova (2013) and most recently appeared in Aoki Hagane no Arpeggio: Ars Nova DC (2015).
What is I-400's Japanese name?
I-400 is written イ400 in Japanese.
Where can I watch I-400?
Open the Aoki Hagane no Arpeggio: Ars Nova page for licensed streaming links and the full episode list.












