Sakuya, a proud kunoichi from the Nagiiri village, is captured by a traitor named Oborobe no Hie. To break her spirit and force her allegiance, Hie subjects her to a series of brutal sexual tortures and "re-education" sessions. As Sakuya struggles to maintain her resolve against her body's involuntary reactions, the traitor's cruelty intensifies, culminating in a violent encounter with rival shinobi that leaves Sakuya's life hanging in the balance.
Hoden continues his cruel "lessons" to break Sakuya's spirit and force her obedience through sexual submission. When the defiant kunoichi Hotaru is captured, she is subjected to the same degrading treatment alongside Sakuya. Despite their initial resistance, both women are systematically broken by Hoden and his allies, eventually succumbing to pleasure and losing their will to the traitor's dominance.