My article Movie History introduced a great Kunoichi video called Lady Ninja Story くノ一忍法伝 封印の掟 ～女淫愛残抄～. By this chance, a lifecycle of a female ninja can be demonstrated by the fate of a Kunoichi in the story.
Step 1: The Kunoichi accepted a mission and put bodystocking on.
Step 2: She performed sneak attack at night.
Step 3: Her weapon was removed by the enemy.
Step 4: She was tortured by the enemy in fatal methods.
Step 5: Her dead body was abandoned on a street.