Some fun stuffs in ep. 3.....
Dalpo's girlfriend.... His navigator/GPS .

Lee Bo-young voice-cameos tells him to put on his seatbelt.
Dal-po asks his new girlfriend, “Hye-sung-ah, what should I do?”
Hye-sung navigator/GPS : “Drive safely!”
Dal-po asks "girlfriend" if In-ha is innocent or stupid
Hye-sung Navigator/GPS: entering a children’s safety zone.
Dalpo nods and says : she’s right—InHa IS a child.
While rubbing Grandpa’s shoulders, who try to be set him up with a girl.....a picture of the pizza place’s daughter (

it’s actress Kim Min-jung ), wants Dalpo to date her now that he’s broken up with his last girlfriend. Dal-po quickly says he already has a new girlfriend which he describes as sweet voice, pretty and smart similar to what he said of the previous girlfriend.
Want to his dream....
In Ha can’t resist for good luck, and bargains for 5000 won to buy his dream, so he snaps a button off of his shirt as a receipt. In Ha says he's immature, but threads the button onto her necklace for safekeeping.