Wooyoung appeared on Secret Guarantee and it was fun

Kim Sook and the two had great chemistry in Hong Kim Dong Jeon, and here they really felt like real siblings.

In the Ujal-Tak-Kal-Sen corner, they give advice on relationship problems, and Kim Sook and Song Eun-i are so frustrated that they beat their chests.

He's really good at dancing and managing himself well, but the way he speaks softly is so funny

I can see that Kim Sook and Song Eun-i are cute.