In the CF, the girls are rolling around the living room, complaining about the absolute lack of things to do. Just when Eunji says, "I'm so bored!", Kim Bo Sung shoots out from behind their kitchen counter and shouts, "When you play, you have to do it properly!"
The CF is for 'G9' is an online shopping mall similar to Groupon, which apparently gives the biggest discounts at 9AM every day. Check out the awkwardly funny CF above!