DASD-926 My girlfriend was faithful and cute to me, but she was raped and impregnated by my dad. Lotus

Keiichi and Ranka have been dating for about three months. Ranka, who looks like a gyaru but likes games and anime, was kind to even the timid Keiichi. However, Keiichi is not accustomed to sex, and even if he is asked to blame him, he can't lead well, and the moment he inserts it, he orgasms. Keiichi's father notices such Ranka. Keiichi's father plans to make Ranka and himself alone, and puts an aphrodisiac in tea and makes Ranka drink it. And she forcibly embraces Ranka's body, which is flushed with her medicine...