To destroy her archenemy AnCrime, Justion risks her life by infiltrating enemy territory. She takes down enemy soldiers one after another, her combat style always satisfying and precise. However, her mission collapses when she discovers her younger sister, missing for years, has been taken hostage. Captured and restrained, she is interrogated by AnCrime soldiers demanding the method to disable her GR function—all while her own pleasure begins to rise. Each time she nears climax, the device attached to her sister amplifies pain sensations, increasing her sister's agony. AnCrime soldiers torment her body, applying a pleasure-vibration machine known as the "Black Satan Stronger" to her erogenous zones, forcing her to climax repeatedly. Forced onto all fours, her buttocks and private areas are licked and violated, then penetrated from behind by a custom machine dildo, driving her to orgasm after orgasm. The soldiers continue endlessly, pushing her to climax after climax. Will she manage to protect the secret of her GR function? [BAD END]