In the harsh environment of snowy mountains, a perverted female masochist is trained while completely naked. She is tormented with a vibrator as she walks along snowy paths, forced to urinate on the roadside, leaving traces of her stream on the fresh snow. Deep in the snow-covered forest, she is tied to a tree and abandoned, her lips turning blue from the cold. Yet her nipples remain erect, and hot arousal fluid continuously drips from her genitals. Even under such extreme conditions, she refuses to stop the training—because as a female masochist driven by overwhelming sexual desire, she simply cannot endure holding back.