Secret’s Sunhwa and After School’s Jooyeon show “blank brains” on “Invincible Youth”

Secret’s Sunhwa and After School’s Jooyeon held a battle of the ‘blank paper brains’ on an episode of KBS 2TV’s “Invincible Youth.”Sunhwa is already known for her ‘blanket paper’ character on the show, while Jooyeon recently earned the nickname of ‘burden Jooyeon’ for not being good at particularly anything. In order to prove that she didn’t deserve her nickname, Jooyeon declared a battle of