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
Genius Party Beyond
Movie
15m
Voices of a Distant Star
OVA
25m
Humanity Has Declined Specials
Special
2m
Kyou no 5 no 2 (TV)
TV
23m
Le Chevalier D'Eon
TV
25m
Lupin the IIIrd: Mine Fujiko no Uso
Movie
57m
Oh! Edo Rocket
TV
24m
Jing: King of Bandits
TV
24m
Attack on Titan: Chronicle
Movie
121m
Star☆Twinkle Precure
TV
24m
Tenkuu Senki Shurato
TV
24m
Neppuu Kairiku Bushi Road
Special
93m
Saber Marionette J Again
OVA
27m
Saint Seiya: Shinku no Shounen Densetsu
Movie
75m
Saiyuki Reload Blast
TV
23m