A true masochistic woman who craves humiliating torture! This is the ultimate destination of pleasure that a genuine masochist has been seeking! Shiori is an ordinary girl who looks like she could be anywhere. Pure and lovely, she had another side to her that she wanted to keep hidden from everyone. The "M" instinct that had been sleeping deep within her awakens. Though confused at first, her expression changes the more she is restrained and cornered. As her freedom is taken away by bondage and she is subjected to humiliation, she begins to crave the torture herself.