Yoo Yun Suk revealed his thoughts about being seen on TV with only his underwear on during tvN's 'Youth Over Flowers' in Laos. 

The actor said, "Honestly, how would I have known that they would air me in my underwear?" He then added resentfully, "I should have thought about it more. For Son Ho Joon, they were hiding it, but for me, there weren't even captions at one point. The guy was just walking around in his underwear," referring to his portion of the airing. The actor cried in embarrassment and regret during his interview, "I should have double-checked." 

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Yoo Yun Suk also revealed that acting as Chilbong on tvN 'Reply 1994' was difficult because he was from the countryside. He said, "Chilbong was actually difficult. I thought it was right at the time and continued to believe in it, but it was [difficult] because I was a hillbilly." 

The actor added while he was trying to play the part of Chilbong, a young man who was born and raised in the city, as a guy who came from the countryside, "I thought I was being really weird and cheesy. It was really difficult. "

Watch Yoo Yun Suk's underwear scene below!