Wooyoung knocks on the door once he's got his story straight. He's here to act as this person's housekeeper for the day and he can show his documents to even seal the deal, even if it's fake. The risk is pretty high, but he knows it'll pay off; this person was said to have a lot of money and it showed.

When the door opens, he smiles brightly.

"Hello, I'm Wooyoung, your housekeeper for the day."

It'll be a piece of cake scamming this idiot; most rich people are pretty dumb anyway.