Amazon Japan lists that Nobunaga Concerto’s 11th volume of the manga will bundle an OVA titled “Nobunaga Concerto: Shuugaku Ryokou IN Kyoto-hen” and will be released on September 12, 2014.
The TV anime of Ayumi Ishii’s manga Nobunaga Concerto started airing on July12 and is currently airing during the summer 2014 anime season.
Nobunaga Concerto synopsis from Haruhichan:
The story centers around Saburou, a high school boy who time-travels to Japan’s Sengoku Era. He must become Nobunaga Oda, the famed warlord who helps unite Japan.
Source: nekonotemo