Arpeggio of Blue SteelArpeggio of Blue Steel.

Arpeggio 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. 31 tankōbon volumes have been released and an anime series by Sanzigen aired from October to December 2013. The same studio also produced two films based on the series, released in January and October 2015.