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
Initial D Legend 1 Awakening
Movie
62m
Noragami OVA
OVA
24m
City Hunter
TV
23m
My Hero Academia Movie 1: Two Heroes
Movie
96m
Claymore
TV
23m
Fairy Tail Series 2
TV
24m
Humanity Has Declined
TV
23m
Black Butler
TV
24m
Mobile Suit Gundam
TV
25m
Bungo Stray Dogs
TV
23m
Golden Kamuy
TV
23m
Tower of God
TV
23m