The review is of the official English Omnibus version released by Vertical Inc.
A tale of 12 Katanas and the pair crazy enough to seek them!
📔LIGHT NOVEL INFORMATION
AKA: 刀語, Sword Tale, Sword Story
PUBLISHER (English): Vertical Inc.
TRANSLATOR: Sam Bett
RELEASE DATE (English): November 27, 2018
PURCHASE (Amazon.com): https://amzn.to/2SgOuAd
PURCHASE (Book Depository): http://bit.ly/2JxBylQ
PUBLISHER (Japan): Kodansha Box
RELEASE DATE (Japan): Vol.1 January 2007, Vol.2 February 2007, Vol.3 March 2007
VOLUMES RELEASED (Japan to Date): 12 (complete)
ANIME SERIES: Yes. 12 episodes, covered the entire series. Episodes were double length