★ 7.0 TV Series
High School Fleet
Storyline
In the story, a Fleet of Fog loaded with super weapons suddenly appear all over the world. Without the ability to withstand this fleet, humanity was defeated and could no longer travel the seas. 17 years after the devastating naval war, Chihaya Gunzou and his friends somehow commandeer a Fleet of Fog submarine and rename it I-401. Together with Iona, they take on the Fleet of Fog. (Source: Anime News Network)
Trailer
Characters & Japanese Voice Cast
Iona
Main
VA: Mai Fuchigami
Gunzou Chihaya
Main
VA: Kazuyuki Okitsu
Narrator
Supporting
VA: Jouji Nakata
Takao
Supporting
VA: Manami Numakura
Kongou
Supporting
VA: Yukana
Haruna
Supporting
VA: Hibiku Yamamura
Kirishima
Supporting
VA: Yumi Uchiyama
Iori Watanuki
Supporting
VA: Minami Tsuda
Hyuuga
Supporting
VA: Saki Fujita
Maya
Supporting
VA: MAKO
I-400
Supporting
VA: Rina Hidaka
Shizuka Hozumi
Supporting
VA: Nao TouyamaSeasons & Related Anime
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Frequently Asked Questions
How many episodes does Arpeggio of Blue Steel have?
Arpeggio of Blue Steel has 12 episodes.
Which studio made Arpeggio of Blue Steel?
Arpeggio of Blue Steel is produced by SANZIGEN.
Facts from AniList (also listed on MyAnimeList); streaming availability from JustWatch India. Last updated 17 October 2026, 10:33 AM IST. Episode times are Japan broadcast times shown in IST. Spotted a mistake? Write to [email protected].