Arpeggio of Blue Steel is a gripping, action-packed manga series set in the near-future where humans must wage an aquatic war of survival against a mysterious alien invader.
Humanity\'s only hope is to launch a sentient superweapon: a girl able to transform into a deadly submarine..
Arpeggio of Blue Steel is a gripping, action-packed manga series set in the near-future where humans must wage an aquatic war of survival against a mysterious alien invader