Kim Jaejoong and Kim Eung Soo, who are currently acting in MBC drama "Time Slip Dr.Jin," revealed a picture of themselves at the filming set.

Today, Kim Jaejoong posted on his Twitter, "I've been running for two days without a single hour of sleep. This is not acting." He posted another picture saying "The second wipe out".

In the pictures, Kim Jaejoong and Kim Eung Soo are in their drama costumes, falling asleep on the spot. Kim Jaejoong is sitting down with his head down, and Kim Eung Soo is lying down.

Internet users who saw this commented, "We will give you energy," "No wonder they're so tired, they've been filming all night," and "I think if I were them, the moment I sit my butt down, I would fall asleep."

Photo Credit: Kim Jaejoong Twitter