Volumes 1-10 and Gaidens released by Fujimi Fantasia Bunko on September 19th
Mikage Kasuga and Futago Minazuki's gender-swap alt-Warring States history The Ambition of Oda Nobuna light novels were originally published by SB Creative Corp.'s GA Bunko label before moving to Kadokawa's Fujimi Shobo at volume 11. Now coming from the Fujimi Fantasia Bunko label, New Edition releases of volumes 1-10 along with the National Edition Gaiden Jakiganryuu Masamune and Azuchi Nikki 1 Honnouji Chakai Soudouroku were released September 19th. The promo for this new push has finally made it online.
The series was adapted into a 2012 anime by Studio Gokumi and Madhouse.
Check out the new light novel page at http://www.fujimishobo.co.jp/sp/201507odanobuna/