My Slender, Big-breasted Girlfriend Was Cuckolded And Seed-pressed By My Father. Mei Satsuki

Mei, a college student dating Takeru, goes to greet Takeru's father, Ichiro. Although Ichiro thinks of her as his son's girlfriend, he falls in love with her at first sight. During their conversation, it comes to light that the company where Mei's father works is a subsidiary of Ichiro's. 'If you're going to get married, you might as well live together now. I'll talk to your father,' Ichiro says, using his position to make Mei move in with him.