Imouto To Sono Yuujin Ga Ero Sugite Ore No Kokan Ga Yabai

Kanata becomes a professor and he is teaching his younger sister Miu, as well as her best friends Riko. The job may be tough, but looking at these gorgeous chicks seems to make things easier for him. Or, rather, harder. As in, making his dick hard. We can't blame him though, because these coeds are looking mighty fine!