Recap of the Aoki Hagane no Arpeggio: Ars Nova TV series, with approximately 40 minutes of new material.
By 2039, global warming had caused sea levels to rise and large amount of territory to be lost. As though in response, a mysterious group of warships clad in mist, "the Fleet of Mist," appeared in every corner of the ocean, and began attacking human ships. In spite of humanity mustering all their strength, they were utterly defeated by the Mist's overwhelming force. All of humanity's trade routes were blockaded by the Fleet of Mist, their political economy was destroyed, and the human race was steadily beaten down. Seven years later, the Fleet of Mist's submarine I-401 appears before cadet Gunzo Chihaya. The humanoid life form that pilots the sub, who should be their enemy, is instead offering her services to mankind.
(Source: ANN)+ More
Characters & Voice Actors

Iona
Main
Ashigara
Supporting
Chihaya, Shouzou
Supporting
Haguro
Supporting
Haruna
Supporting
Herder, Cruz
Supporting
Hiei
Supporting
Hozumi, Shizuka
Supporting
Hyuuga
SupportingRecommended for you
Yu☆Gi☆Oh! Zexal Second
TV
23m
Battle Spirits: Saga Brave
ONA
24m
Black Rock Shooter
TV
23m
Etotama
TV
24m
The Magnificent Kotobuki
TV
24m
Nanbaka: Idiots with Student Numbers!
Special
23m
Atom: The Beginning
TV
25m
Hero Tales
TV
24m
Extra Olympia Kyklos
TV
5m
Dragon Ball Z: The Return of Cooler
Movie
45m
Full Metal Panic! Movie 1: Boy Meets Girl
Movie
120m
Galaxy Express 999: Eternal Traveller Emeraldas
Special
48m
Lupin III: Goodbye Lady Liberty
Special
97m