The United States is the only country with the resources and capability to mass-produce the weapon system. Gunzō and his crew are hired by a faction of the Japanese government to deliver the prototype of the vibration warhead, a powerful weapon that may finally allow mankind to fight back against the Fog, to the United States. Due to I-401's technology and Gunzō's tactical skills, the Blue Steel have not only survived several encounters with the Fleet of Fog but managed to sink one of their most powerful warships. The Blue Steel are infamous for possessing a Fog submarine, the I-401, along with its Mental Model Iona, who defected to the human side. In 2056, 17 years after the blockade began, Gunzō Chihaya, a former student of the Japanese National Marine Academy, is the captain of a small group of privateers called the 'Blue Steel'. During the blockade, the Fleet of Fog created Mental Models, humanoid avatars containing a ship's Union core, as a means to develop self cultivation and to overcome their lack of creative thinking of tactics that humans possessed, which at the same time made the Mental Models develop their own unique personality.

These ships, collectively known as 'The Fleet of Fog', impose a worldwide naval and aerial blockade, preventing humanity from both traveling the oceans and to other nations. In 2039, fleets of powerful sentient warships, armed with advanced technology and possibly 'alien' weaponry, mysteriously appear and devastate the world's naval forces.

The same studio also produced two films based on the series, released in January and October 2015.ĭue to global warming and rising sea levels in the early 21st century, much of Earth's landmass has been lost. 25 tankōbon volumes have been released and an anime series by Sanzigen aired from October to December 2013. Arpeggio of Blue Steel -Ars Nova Cadenza-Īrpeggio of Blue Steel ( 蒼き鋼のアルペジオ, Aoki Hagane no Arpeggio) is a Japanese manga series produced by Ark Performance and serialized in Shōnen Gahosha's Young King Ours.

World of warships arp musashi