[BAGR-038] A sister who distorts the friendship and propensity of her otaku brother Kanna Shiraishi

A college student otaku boy who started living alone when he went on to higher education. The younger sister, who was jealous of such a brother, began to go in and out of her brother's room frequently. One day, my sister negotiated to rent her brother's room as a place to have sex with a saffle, but she was refused because her friends were coming. - The troubled sister decides to implement a diabolical idea that she suddenly came up with. A habit called Sade that awakened while mentally pushing his own brother. He ridicules his brother, whose friendship has been destroyed and made into a masochist.