A place watching an adult video is witnessed in Elderly Sister, Runa, and plan revenge that abused younger brother, Toshio pirates Runa and sells in a net, but it is found out, and bullying of the Runa begins…. Toshio who became the Sex Toys of the Sei of the Runa cannot tolerate it, and start Torture & Rape SEX of the counterattack with senior, Yanai! The Runa became the Sei Slave of younger brothers….
