Actress Kim Sun Ah showed off her bond with BoA.

On the 3rd she posted on her me2day "I should have stepped back a little! BoA who always monitors and encourages me is the best! You are always No.1 you look good these days", along with a photo.

In the revealed photo are Kim Sun Ah and BoA wrapped around in a scarf and a hat. The two's unexpected relationship is receiving the attention of the netizens.

Those who saw the photo commented "you two are #1", "both so pretty", "crazy social network" and etc...

Photo Credit: Kim Sun Ah me2day