In the game, he's the old man who owns the mansion the House Boys work at, and is the one who's fortune the boys are trying to inherit. They have to do their chores to win his favor, but are usually distracted by "getting busy" with each other!
Yes, I got it from your last pic, thanks anyway for the info; somehow I think that in the end, he'll inherit equality all for them all as he'll understand they share upon each other as a group and might have better use of the material goods than reliying all in one just single person. By the way, the propetie is awesome; how did that guy create all that fortune?