There was a beautiful girl, Mizuki, wandering the city looking for friends who were disappearing one after another... A contact from a missing friend came to Mizuki's smartphone, who was exhausted and at a dead end in her search... Without knowing it was a trap, Mizuki, summoning her courage to rescue her friend, single-handedly enters the Kuroshishi-kai office! She was made to drink a drink containing a powerful aphrodisiac and lost consciousness! What awaited Mizuki when she woke up was a strong orgasm hell of pleasure torture and bondage! Mizuki desperately endures, but the woman's dormant instincts awaken, and unimaginable pleasure assaults her body... What will be the fate of the beautiful girl warrior Mizuki before the strongest pleasure torture in history!!