An overly eager Yoon Si Yoon makes a pledge that scares all the '1 Night 2 Days' members

Yoon Si Yoon was overflowing with energy and ambition on the May 1 broadcast of '1 Night 2 Days'!

Though the '1 Night 2 Days' crew were pleased to see that Yoon Si Yoon was so full of spirit, they were also a bit intimidated, especially at the actor's fearsome declaration. �

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Yoon Si Yoon had said, "Hello. I'm Yoon Si Yoon. As Kim Tak Goo, I achieved 50% in viewership ratings. Now it's time to do the same on variety. I will achieve a 50% viewership rating [on this show]." At the actor's speech, the members teased, "This guy is weird. We brought a weird guy on here." Not bothered at all by the quips, Yoon Si Yoon added, "We can do it. But only if we suffer," making all the members uncomfortable.�

That's the spirit, Yoon Si Yoon!�