[BAGR-007] A sister who distorts the friendship and propensity of an otaku brother Noa Eikawa

A college student nerd boy who started living on his own when he went on to higher education. Envious of such a man, my sister began to move in and out of the room frequently. One day, my brother's friend and sister got together. A younger sister who enjoys the reaction by seducing him with a panchira just like her brother. The sister, who enjoys teasing the older man, gradually escalates and even destroys her friendship with her brother. Awakened to an abnormal propensity, the younger sister even involves her brother and seeks spiritual pleasure...