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.