Behind-the-scenes stories from the waiting room of Kim Kang-woo and Ki Sung-yong on You Quiz

I saw the two of them, who are brothers-in-law, talking together in the waiting room, and they looked natural and comfortable.

I heard Ki Sung-yueng's wife keeps nagging him to stop wearing tracksuits.

It was fun learning even the behind-the-scenes stories that weren't shown on broadcast.