Okatsu

Okatsu is a female ninja or "kunoichi" under Hattori Hanzo. Trained in the same Iga ninjutsu as Hanzo, she accompanies William on his travels. Kunoichi are as skilled as warriors and spies as male ninja, but also have the added benefit of being able to masquerade as powerless women to encourage targets to let their guard down, or disguise themselves as maids to gather information. Okatsu's mastery of every aspect of the ninja is said to rival even her teacher Hanzo's and makes her a strongly trusted figure.