It's Changmin who first decides that Yunho's mole should not be covered up. As soon as the coordis release Yunho from the prep chair, Changmin's there with a wet cotton ball to wipe away the concealer.
Yunho stands still for it, but says, "You know they're just going to airbrush it out."
"I know," Changmin says, tilting up Yunho's chin to check his face in the light, "but this way, they actually have to airbrush it out if they want to pretend it's not there."
"Feeling symbolic, are we?"
Yunho just smiles. "Be sure you get it all."