Musuko no Yome wa Ore no Mono -Joi to Nurse ni Shikomu Tane-

I'm the director of a hospital and now thinking about a successor. Setsuka, one of my daughters, is one of the candidates, but her husband hates me. How about Mayuki, Setsuka's younger sister? There is, however, a man who's been persistently approaching her. Who the hell is he!? I don't want a man whom I don't allow to be my successor! What should I do...? Oh, it's easy. I should make them pregnant. That sounds great.