Character · Arpeggio of Blue Steel
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.
#23,872Most favouritedAmong the quiz's characters
6Favourites on AniList
HardIn Character Guesser
#2,141Anime popularityArpeggio of Blue Steel
More from Arpeggio of Blue Steel
All 10 characters →
Also voiced by Rina Hidaka
All 76 roles →
#439Milim NavaThat Time I Got Reincarnated as a Slime
#621Misuzu GundouTomo-chan Is a Girl!
#832FiloThe Rising of the Shield Hero
#1001Arisu SakayanagiClassroom of the Elite
#2066Ako TamakiAnd you thought there is never a girl online?
#2285EmulShangri-La Frontier
#2377Claire KagenouThe Eminence in Shadow
#2424Yui HachimitsuShikimori's Not Just a Cutie
#2452Yume IridoMy Stepmom's Daughter is My Ex
#2496Enju AiharaBlack Bullet
#2514Keiko AyanoSword Art Online
#2807Ririchiyo ShirakiinInu X Boku Secret Service