GG-280 Older sister's real sex education Saki Hatsumi
``Saki'' is concerned about her younger brother, ``Mamoru,'' who has not been feeling well lately. From what I hear, it seems that Mamoru, who doesn't even know the meaning of ecchi, is being bullied at school. Saki answers a question from a depressed Mamoru. Saki had warned her that ``siblings can't have sex,'' but after an incident that Mamoru caused at school, Saki decided to take it easy for the sake of her cute younger brother.
