Former figure skater Kim Yuna appeared in the performing arts for the first time in six years. On the 21st, Kim Yuna, the figure queen, appeared in the 200th featured trailer of tvN entertainment 'Yu Quiz on the Block'. Yoo Jae-Suk and Jo Se-ho applauded Kim Yuna's appearance and welcomed her. Yoo Jae-Suk said to Kim Yuna, who married Forestella member Ko Woo-rim last October, "I am married and I am late but congratulate you." Jo Se-ho asked, "Did you see my husband on our show last time?" Ko Woo-rim made headlines when he appeared with Forestella members in December last year. Kim Yuna said, "I was worried that I would do something the other day. So I said, 'What should I do if I do it?'" Kim Yuna asked what it would be like if a future child wanted to play figure, "Absolutely not. I said, "I can not do it because I did it." "I thought it was too hard to exercise, so at the end, my wish was 'I do not want to breathe.'" He said, "But nowadays my heart needs to run a little." When asked if he had any regrets when he was a player, Kim Yuna calmly said, "I don't think he really had any. I did it until the end. That's why I was able to leave without regret." Kim Yuna retired after the 2014 Sochi Winter Olympics, marrying four-year-old Ko Woo-rim in October last year.