Kunoichi no Jitsu was the Ninja technique of using female spies to infiltrate, sabotage, and assassinate enemy warlords.

In feudal Japan women were considered property and socially beneath their male counterparts. It was years before the strict caste system even allowed their victims to entertain the thought that a woman might have done them in.

Thus, disguised as geisha or kitchen help these deadly sisters of the night were able to penetrate enemy strongholds and get near enough to poison or kill their target.

In modern times female agents are a regular and equal part of most intelligence networks. Given here are techniques of espionage and self defense suitable for modern self defense or serious revenge.