The deranged sadists reaffirm their twisted purpose as the Female Body Torture Research Institute spirals further into chaos. Devising even more brutal methods of female pleasure-punishment, they target a female detective for their next experiment. This detective is Tsukasa Minami, a rising elite and chief inspector at the Public Security Division of the Tokyo Metropolitan Police, daughter of Division Chief Koichiro Minami, and a promising candidate for leadership within the agency. An outstanding officer with an impressive background and track record, her future is full of promise. Now, the battle between the Female Body Torture Research Institute and the female detective enters a new phase. What twisted fate awaits her at the hands of these madmen?