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At first glance, Kokoro appears to be a strong-willed, attractive woman, but while she’s drinking alone at a bar, she’s approached by a suspicious man who buys her a drink. However, as soon as she drinks, she loses consciousness and is taken away. When she wakes up, she finds herself in a room she’s never seen before, tied up with her hands behind her back, and surrounded by suspicious men. These men are members of the “Female Torture Research Institute.” They don’t choose their means; they simply play with their targets’ bodies, using every means possible…