On the verge of marriage, Rika encounters a childhood friend by chance while walking through the city. The man suddenly abducts her and forcefully rapes her. Showing no mercy to her pleas for forgiveness, he brutally assaults her, binds her delicate body with hemp rope, and imprisons her. To satisfy his own desires, he repeatedly forces rape upon her. As violence and sexual abuse gradually erode her mind and body, Rika loses all resistance and descends into becoming his sex slave.