f(x)‘s Luna uploaded a picture with her twin sister on October 1 along with the comment: “Did you all have a great Chuseok? It’s been a long time since I took pictures with my family and my twin sister. I’m having a happy Chuseok. Today is a bright and sunny Monday! Have a great day.”

In the pictures, Luna and her sister are close to the camera and make a variety of adorable facial expressions, showing just how alike the two look.

Fans and netizens commented, “They’re really alike“, “Luna and her sister look the same!“, “Luna’s parents must be so happy, since they look so friendly!“, and “Luna and her sister are so pretty“.