The Yagyu Ninja Scrolls Vol. 7 (Kodansha, 2016)

Revenge is sweet–even for the nuns of the Hori clan who have sworn to avenge their slain sisters. Trained in the lethal samurai arts, they have taken down all but three of the terrible Aizu Seven Spears who were responsible for the slaughter. The women have tracked one, Katô Akinari, to his hideout–but he's called in some serious support. A deadly showdown is imminent!