Bird White / Mio Shitatori, a member of the elite ninja team Bird Soldier, infiltrates the secret base of the evil organization Galiger. She confronts high-ranking officer Berukaizer but is defeated in battle and captured. Berukaizer orders his soldiers to begin torturing Mio to extract information about the Bird Soldier base. Initially, they focus on physical torment, attempting to break her with pain, but seeing no results, they shift to psychological torture. Mio is subjected to urethral stimulation, forced to wet herself, and humiliated repeatedly, yet she manages to endure. Observing her reactions, Berukaizer concludes that mental anguish is more effective than physical pain. He then uses a machine to heighten her body's sensitivity, tormenting her intensely. A special liquid is injected through her anus, gradually destroying both her body and mind. In the end, Mio loses her sanity, meeting the worst possible fate. [BAD END]