BAGR-007 Noa Eikawa, the bitch sister who distorts the friendship and sexuality of her otaku brother

An otaku male college student who started living on his own after going to college. - My sister, who was jealous of such a man, began to come and go in and out of his room frequently. - One day, my brother's friend and my sister ran into each other. - Like her brother, she seduces him with panty shots and enjoys his reaction. - The younger sister enjoys teasing the older man, and her behavior gradually escalates, even destroying her friendship with her older brother. - The younger sister awakens to her abnormal sexual tendencies and seeks spiritual pleasure, even involving her older brother...