In a future where Anti-Demon Shinobis battle malevolent spirits, Asagi and her team are betrayed by their own government during a mission in Tokyo Kingdom. Overpowered by a specialized aphrodisiac drug, the kunoichi are captured and subjected to brutal humiliation by their enemies. As the captors use the young Kousuke as leverage, Asagi vows to rescue her comrades and the boy from their sadistic grip.
Asagi surrenders to Oboro in a desperate attempt to save the mutated Kousuke, only to find that Sakura and Murasaki have been brainwashed into demonic servants of Edwin Black. After enduring months of relentless torture and psychological breaking, Asagi is reduced to a pregnant slave who has forgotten her identity and her loved ones. Despite her apparent submission, a hidden spark of her former self lingers as she is forced into a twisted new life.