New girl group "Girlfriend" posted a picture with Lizzy, a member of the girl group "Afterschool,"
on their official twitter, and Lizzy's thin legs are being a hot issue in a Korean online community!

Netizens who saw the picture had reactions like, "I thought that Girlfriend have thing legs too...!",
"Girlfriend's legs look thick because Lizzy is too thin. Ha," and "Isn't Lizzy too thin?"