A student named Kyosuke has been dating a teacher named Miss Marina, whom everyone calls 'the tight-ass princess.' One day her parents inform her that if she doesn't marry someone she won't inherit her parent's home and fortune. They even said they would disown her! Kyosuke proposes and encourages her to marry him right away. She is moved by his proposal and becomes his wife, and he starts to ask her to have his child. This is just the beginning of her days of indulging in hot and sticky baby making!