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During this week's episode, members from both teams were trying to guess who has the master key.�

While looking at the hint given, Hongki said while looking at Eunhyuk, "It's easy to deduct Eunhyuk hyung...he obviously has one." Eunhyuk immediately became flustered and denied the claim but Hongki continued to joke, "If there is one from the seven members, then just choose Eunhyuk hyung. I know because I know he's had greed/desired for gold since he was young." After hearing this, Eunhyuk said, "My name is Eunhyuk, why would I have greed for gold, I should like silver instead ('eun' translates to the word 'silver' in Hangul)." Hongki joked back, "Hyung, I think you were in the military for way too long," to make everyone laugh.

Did you enjoy 'Master Key' this week?