The second installment of the ultimate incest documentary! What would you do if your sister was a famous AV actress? This project is about a brother who has such a naughty sister. This time, the beautiful-breasted idol Kokomi Naruse, who says she can have sex with her brother, appears! The sister (Kokomi Naruse) repeatedly tempts the unsuspecting brother with her naughty desires! Will the sister (Kokomi Naruse) actually have sex with her brother?