Kokoro was kidnapped and held captive just because Madam's hobby is to train good women and turn them into slutty pigs. She is forced to drink an aphrodisiac and finds herself tied up and unable to move. She resists, saying "Stop! Let go!", but the effect of the aphrodisiac makes her body twitch and react sensitively to even a light touch. Her clit is fully erect and pops out of her panties, and her entire body becomes an erogenous zone! In an instant, the pleasure overcomes her reason, and from then on Madam has no control over her. She is tied up in various embarrassing positions, and is tortured with toys, candles, Madam's strap-on, electric drill, and all kinds of pleasure, and she is reduced to Madam's sex slave.