BtoB and Apink both attended MBC Gayo Daejeon 2016. Changsub who was ready with his make-up decided to visit Apink's room as he was bored while waiting for the other member to get ready. He entered the room and Apink member welcomed him happily.

"Woahh~ Look who come to our room," said Namjoo who was getting her hair done.

"An angel come! An angel come!" added Hayoung happily.

"Stop it both of you. I'm not an angel,"

"Yah..yah.. don't praise Changsub oppa or he will getting arrogant," interupt Eunji playfully.

"No, I'm not!" Changsub take his sit next to Chorong.

"Oppa, I'm not lying. I really wanted to cry when you said that Chorong unni should buy you 20 cup of coffee instead of pay-back,"

"What's the used of having friend if we can't help them right Chorongie?"

"Yes! That's my friend," they do high-five.

Bomi who was eating jajjangmyeon then asked Changsub,

"I really curious about something oppa. If we asked the same question, will you gives us the same answer?"

"Of course not. For you guys I will added interest,"

All the girls were booing Changsub as they didn't feel satiesfied with the answer. And they think its not fair for them as they also closed to Changsub.

"Mwoya! Why you treat us differently oppa? You guys didn't have any secret from us right?" asked Naeun.

"Secret? What kind of secret?" asked Chorong back.

"That you guys are dating," Eunji bl