This is the rumored aphrodisiac-laced, busty investigator, Seiko Takahashi, MIDE-654.

Busty female investigator Seiko Takahashi is considered an elite among female investigators, always involved in investigations of the most dangerous underground arms trafficking organizations. This time, disguised as a "spreading agent," she successfully infiltrated a warehouse to find illegally stored firearms and ammunition, but was unfortunately captured and used as a sex toy by the organization's executives. In a dark basement, her beautiful body was subjected to "training"...