Nyonin were sent to the enemy that they could not beat through physical strength alone, and were disguised as maid servants, whereupon they gathered classified information and committed assassinations.
女忍は、主に力一辺倒では太刀打ちできない相手に対して下女などと偽って送り込まれ、機密情報の収集や暗殺などを請け負った。