STAR-947 Makoto Toda, a beautiful office lady turned into a sex toy for her shut-in brother’s voyeuristic urges

My older brother, who is a voyeur maniac and a hikikomori, had a refracted desire for his real sister. His older brother grew up with it, and began to observe his sister’s private life at home every day using the camera function of AI home appliances. One day, aiming for the day when his parents were absent, my brother took a drastic action as a close relative.