Lee Hwi Jae takes Suh Un and Suh Joon to a sauna in preview cuts for 'Superman is Back'

Lee Hwi Jae will be taking Suh Un and Suh Joon to a sauna on the upcoming episode of KBS 2TV's 'Superman is Back'!

Suh Un and Suh Joon made Lee Hwi Jae laugh with their sauna uniforms that went down to their ankles and towel buns. The twins also found a playpen and got caught up in playing without looking back at their father. Seeing this, Lee Hwi Jae commented, "They're fine without me. This is heaven."

Check out the twins' first trip to the sauna this Sunday at 4:50 PM KST!