Cortis Martin X Seonghyeon, whose core strength seems no joke either.

🐒🐒

A photo of Cortis Seonghyeon and Martin dangling from the wall has been uploaded to Instagram!

Seonghyeon and Martin, who seem to have incredible core strength.

They look exactly like monkeys dangling from the ceiling, and I think they are so cute. They are such energetic cuties even before the stage.