Mochizuki Chiyome (望月 千代女), also known as Mochizuki Chiyojo, was a Japanese noblewoman of the 16th century who was credited with creating an all-female group of ninja. Mochizuki Chiyome, rumoured to be originally from the Kōga clan, was the wife of Mochizuki Nobumasa, a samurai warlord from Shinano and lord of the Mochizuki Castle (he was killed in the Battle of Nagashino in 1575). While Nobumasa was off in battle, she was often left in the care of the daimyo Takeda Shingen, who also was the uncle of her husband. It was then when Shingen approached her and gave her an important mission to recruit women and create an underground network of kunoichi (female ninja) agents. Takeda’s plan was to have fully trained female operatives who could act as subversive agents used to gather information and deliver coded messages to his allies; Chiyome was the best candidate for this, since she came from a long line of Kōga ninja. She accepted the task, set up her operation in the village of Nazu in the Shinshu region, and began her search for potential candidates for training.