(C79) [BLUE BLOOD'S (BLUE BLOOD)] BLUE BLOOD'S vol.27 (処女はお姉さまに恋してる 2人のエルダー) , (C79) [BLUE BLOOD'S (BLUE BLOOD)] BLUE BLOOD'S Vol. 27 (Otome wa Boku ni Koishiteru Futari no Elder)