Actress Yeon Woo, a former girl group Momo, surprised everyone with an optical illusion-making shirt.
Yeon Woo posted a picture on his 27th day of his instagram saying "it's been a long time".
The photo shows Yeon Woo taking a selfie, which has been a long time since the last four days since Yeon Woo posted a photo on SNS.
Yeon Woo looked like she was losing weight; in close-up photos that showed tear spots under her eyes, Yeon Woo looked extraordinary in an optical illusion-making costume.
Meanwhile, Yeon Woo made his debut as a girl group Momo and turned to an actor.