![](https://cdn.animecharacters.io/images/anime/large/7957-f4c11c2f.jpg)
Format
TV
Episodes
12
Episode Duration
24 min per ep
Status
Finished Airing
Premiered
Fall 2013
Aired
2013-10-08 to 2013-12-24
Source
Manga
Rating
PG-13 - Teens 13 or older
Genres
Action
Sci-Fi
Seinen
Studios
SANZIGEN
Producers
Sotsu
KlockWorx
flying DOG
Ultra Super Pictures
Showgate
Shounen Gahousha
Licensors
Discotek Media
Crunchyroll
Aoki Hagane no Arpeggio: Ars Nova (蒼き鋼のアルペジオ ‐アルス・ノヴァ‐)
In the year 2039, the drastic effects of global warming have caused sea levels to rise, resulting in major loss of land. To ensure humanity learns its lesson, a fleet of powerful warships equipped with advanced weaponry emerges, causing overwhelming defeat for naval forces throughout the world. Calling themselves the Fleet of Fog, each ship has a "Mental Model," a humanoid avatar which represents the ship's heart, its "Union Core." Each model has a different personality but all follow an unknown authority known as the Admiralty Code, who have implemented a blockade to prevent humans from traveling across the sea. Seventeen years after the blockade, Gunzou Chihaya, a National Marine Academy alumnus, stumbles upon I-401 and its Mental Model, Iona, who sides with mankind for unknown reasons. Utilizing this newfound hope of achieving peace for humanity, Gunzou and his friends form a group of privateers, known as the Blue Steel, as they set out on a dangerous journey. [Written by MAL Rewrite]