This balding, middle-aged man often appears when Olive is fifteen or older and has Charisma as her
highest statistic. He always offers her a proposition.
This man will stop Olive on her way home and offer her a way to get more spending money. He is willing to pay her money every month, but for a price. She must become his mistress.
She will refuse if she has high morals.
If she does agree, her Morality and Refinement will drop every month. If her relationship with father is high, you can scold her to stop her from serving him.
The "Dirty Old Man" is actually named Brudin. He is a rich landowner. Whenever he asks Olive to be his Mistress he already is married and even has children.
- Hello, Miss. May I speak with you for a moment?
- I'm very rich.
- I'll get right to the point. Will you become my mistress?
- Miss, wouldn't you like to have some more spending money?
In the Sega Saturn guide book Princess Maker 2 O Isshō Tanoshimu Hon he's known as "スケベオヤジ", or basically "Perverted Old Man".