Oblong formed the Oboro Ninja Army, tasked with destroying demons and evil spirits. However, driven by selfish desires, he betrayed his former comrades of the Anti-Demon Ninja. After being killed by the Anti-Demon Ninja Asagi, he was resurrected as a demon by Azurl, the master of the dark arena "Chaos Arena." But what awaits him is not revenge against Asagi—it's training as Azurl's sex slave. A series of erotic acts unfold, including face riding, deep throat, penis insertion, rimming, and anal penetration, depicting his climax faces as he's continuously violated until his eyes roll back. An original story starring Ayumi Shinoda and Yuri Shinomiya, portraying intense eroticism within a unique world.