It's a Life 4-Cut frame, but it looks so real haha.

The photo shows Seo Su-min striking various poses using So Ji-sub's recently released photo frame.
Matching So Ji-sub's pose, they naturally completed the frame as if they were actually taking a photo together, making hearts with their hands or placing their hands on their cheeks. It really showed off their father-daughter chemistry, and I think it is so nice to see.