J* girl Riko who was kidnapped by a bizarre pleasure torture demon and locked in a closed room. - When she wakes up, she has her full head mask on and her fingers tied to her school desk with a torture device. - Feeling the fear of being numbed by her body being hit by an electric current from her fingertips, Riko becomes incontinent. - Furthermore, her terrifying torture continues to the girl who became her sacrifice. - Her wet cloth is covered over her face and suffocated, her body is restrained on her desk and intense deep throat, V-shaped restraint toy torture makes her squid many times. - A sudden tragedy that struck a naive girl.