In a futuristic Japan plagued by demons and corruption, the Taimanin are elite shadow agents tasked with fighting the darkness. During a dangerous mission, the agent Yukikaze is forced to pose as a slave prostitute to infiltrate the inner circle of a sadistic VIP named Yazaki. Despite her mental resistance, Yukikaze is subjected to cruel conditioning and biological modifications that twist her hatred into pleasure, forcing her to succumb to Yazaki's desires while her comrades watch from the shadows.
Following the betrayal of their ally, Rinko finds herself at the mercy of the underworld leader, Ryal. Through a combination of mental manipulation, brutal sexual assault, and two weeks of agonizing confinement within a demonic "flesh vessel," Rinko's will is systematically destroyed. Ultimately, the once-proud Taimanin is broken, fully submitting to Ryal as a slave prostitute alongside the already fallen Yukikaze.
Yukikaze and Rinko infiltrate an elite orgy party in hopes of finding Yukikaze's missing mother, Shiranui. However, Yukikaze is subjected to extreme sexual degradation in front of her former lover, Tatsurou, who is forced to witness her mental and physical collapse. Overcome by her conditioning, Yukikaze fully embraces her role as a slave prostitute, abandoning her dignity to seek pleasure and public humiliation.