Lone Wolf & Cub Manga Omnibus Volume 9 collects two stories from volume 19, all of volume 20, and four stories from volume 21 and features story by Kazuo Koike and art by Goseki Kojima.

With waves of warriors seemingly incapable of killing ronin sword master Ogami Itto, the shogun opts for stealth and subterfuge to attack the Lone Wolf. Using a network of prostitute spies to corner Itto, a master poisoner waits in the shadows to accomplish what razor-sharp steel could not!