DASS-035 My slender, big-breasted girlfriend was cuckolded and inseminated by my father. - Kohanonon

Non is a university student studying Japanese literature and admires a writer named Yasunari Shimazaki. - One day, she learns that her boyfriend Osamu's father is Yasunari Shimazaki and decides to meet him. - However, Yasunari Shimazaki has a hidden side, and is actually Ryunosuke Acmekawa, a perverted erotic novelist whom Non strongly despises. - Osamu's father notices Non's cuteness and invites her home alone under the pretext of helping with his writing. - Then, when I make her drink an aphrodisiac and get her into heat, I violently fuck her even though she doesn't like it.