Investigator Yuri is getting more and more angry and frustrated as her colleagues get caught up in the disappearance of a drug investigator... She learns from an informant that the Kuroshishi-kai is involved in the case, so she goes in alone... but she falls into a trap and loses consciousness in front of the object! Her beautiful body is restrained and unable to move, and she is played with unreasonably and subjected to humiliating pleasure training... She tries desperately to endure and fight, but the pleasure calls for more pleasure, and she falls into an endless pleasure hell, and continues to cum in a panic! What will be her fate?