The seventh volume of Ark Performance's science-fiction naval manga Aoki Hagane no Arpeggio (Arpeggio of Blue Steel) is announcing on Thursday that a television anime adaptation has been green-lit. 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, Gunzō Chihaya and his friends somehow commandeer a "Fleet of Fog" submarine and rename it I-401. Together with Iona (I-401's "mental model" or physical incarnation in humanoid form), they take on the "Fleet of Fog."

Seiji Kishi (Persona 4 The Animation, Angel Beats!, Devil Survivor 2 The Animation) is directing the anime at SANZIGEN Animation Studio (009 Re:Cyborg, Black Rock Shooter). Makoto Uezu (Devil Survivor 2 The Animation, The Qwaser of Stigmata) is in charge of the series scripts, and Masato Kōda (Monster Hunter & Devil May Cry games) is composing the music.

The creative team "Ark Performance" launched the manga in Shonengahosha's Young King Ours magazine in 2009. Flying Dog, the anime label of the Victor Entertainment Group, already registered the domain name aokihagane.jp.