There’s a pretty strong push overall for this series when it comes to promo videos since they’ve been coming out for awhile now and the fourth and latest one has debuted for Arpeggio of Blue Steel, another of the fall anime series. Known as Aoki Hagane no Arpeggio in Japan, the series is based on the manga by Ark Performance, which has seven volumes on hand so far in Japan, the new show is being directed by Seiji Kishi based on scripts by Makoto Uezu.
Plot Concept: 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, Chihaya Gunzou and his friends somehow commandeer a Fleet of Fog submarine and rename it I-401. Together with Iona, they take on the Fleet of Fog.