Baka na Imouto o Rikou ni Suru no wa Ore no XX Dake na Ken ni Tsuite (Baka na Imouto o Rikou ni Suru no wa Ore no XX Dake na Ken ni Tsuite (バカな妹を利口にするのは俺のxxだけな件について))
Based on the erotic game by Pita Feti!.
Based on the erotic game by Pita Feti!.