I'm the Master of 3 Cute Maids

You're a perpetual job-hopper with no real future… until you save an old man from a group of delinquents. As thanks, he offers you a ridiculous reward—a gigantic mansion with three maids ready to serve you! However, in order to become the ‘true owner,’ you must prove yourself worthy within a month’s time. You quickly accept the challenge... How hard could it be to own a mansion?