Unnie and hyun are getting ready to go out for a walk when Unnie accidentally touches hyun's ass. Unnie tries to calm him down, but he's not having it. He tells Unnie to be careful with him because they're close, but Unnie doesn't want to be too judgmental. He says that at home, Unnie hits on his mom, and that's why she dresses the way she does when she's with them. When they get to the house, he wants to introduce him to his aunt, but when he tries to get her to look forward to the party, she says that she'll be there, too. Uh-oh. Huh? Why did Unnie bring his friend home to see what's going on with his mom? Huh? Um, it's because Unnie's a student of his mom's. Um, no, it was because he was the one who taught her how to dress like a nurse when he lived with her. Um... Um... Uh, no. Uh... Uh... Oh, wait, this is a costume for a nurse, and the nurse is wearing a wet nurse's outfit. Uh oh. Wait, what? It's the wet nurse costume. Uh, wait. What's happening? Uh oh... Uh oh, wait... Uh