My Girlfriend Has A Slender Body And Big Tits, But My Dad Fucked Her And Now He's Impregnating Her. Sumire Kurokawa

Sumire is dating Yosuke with marriage in mind. When she goes to his house to meet his father, she finds that the father is her former sugar daddy. The father suggests they all live together, and Sumire, fearing he might reveal their sugar daddy relationship if she displeases him, accepts. One day after they start living together, Yosuke gets called into work, leaving Sumire alone with the father, who drugs her drink with an aphrodisiac and forces himself on her.