关于唯一能让笨蛋妹妹变聪明的方法只有我的××的事
バカな妹を利口にするのは俺の××だけな件について
Collaboration Works
HentaiRomance
Based on the erotic game by Pita Fetish!. To overcome his attraction for his younger sister Hana, Yuuichi Mitsui made sure to enroll at a university far away from his home. Unfortunately, being separated from her only strengthened his feelings. He continues to feel guilty for harboring illicit thou...
