A fierce conflict continues between the Female Body Torture Research Institute and the Moriyama Group, resulting in a new victim. The victim is Shizuka, wife of the Moriyama Group's boss and the de facto operator of the organization. She is a woman of strong will and calm judgment, embodying the resolve of a yakuza wife. The Institute, seeking revenge for the abduction and pleasure torture inflicted on their key member Baba's mistress by the Moriyama Group, summons Shizuka. With her daughter taken hostage, Shizuka confronts the Institute directly, determined to resist their every move. The battle, fueled by her unyielding defiance, is about to begin.