Kanojo Netorase -Ore no ED Chiryou ni Kyouryoku Shitekureru Saikou no Kyonyuu Kanojo ga Saitei Oyaji ni Ubawareru Made | カノジョネトラセ ～俺のED治療に協力してくれる最高の巨乳彼女が最低親父に奪われるまで～

You, Rihito Watarase, are handsome and popular with girls. You have a girlfriend, Serena Suzuhara, who is bright, kind, and busty, though not good at studying. Despite her fair-skinned gyaru-style appearance, Serena is a domestic girl who makes time to come and cook dinner for you, as you live in a single-parent household and your diet lacks nutrition. The two of you are a close couple that everyone envies, and you've already had sex several times. (Of course, you always use condoms properly.) However, you have a complex: "I can't satisfy her sexually."

One day, after learning that Seireina was masturbating because she felt unsatisfied after intercourse, you become ED even though you are still a student. However, Seireina doesn't blame you, but gently comforts you, and rather, worries and grieves, wondering if she isn't responsible. And that makes you feel even more miserable.

One day, returning home from practice with your local soccer club team, you witness Seirena, who had come to your house to cook dinner, being sexually harassed by his own father, Nobuto. Nobuto is someone with a history; it was once discovered that he collected self-shot videos of his affairs on his computer, leading to his divorce from your mother.

That night, Seireina was genuinely happy that you had an erection after a long time, and she brought her plump, thick lips closer to *that*, which was standing erect. You ejaculated in an instant, and after that, you couldn't get your cock to erect. And then, you ended up telling Seireina why you got excited.

"Then I'll keep sexually harassing you from now on, old man!"

You, though hesitant, eventually agree to Hoshireina's innocent and earnest words, which prioritize you above all else. From the next day onward, you intentionally delay your return home, secretly creeping into the house without making a sound, and begin to peek at scenes where Nobuto sexually harasses Hoshireina.

As your erectile dysfunction is resolved, Nobuto's sexual harassment escalates further. You feel intense anger, jealousy, and excitement at the sight of your own father, grinning lewdly, saying, "It's all because of Hoshireina-chan's perverted body," and pressing his considerably more robust member against your beloved girlfriend's body.

"For Rik-kun's sake, I'll keep letting uncle sexually harass me... okay?"

She offers herself to your father for your sake. Are her eyes still gazing at you? Or perhaps—