It's Girls'Generation/SNSD leader Taeyeon! The photo series was posted on the board for her Chin Chin Radio radio show under the title "SMILE." It follows a Whispering Corridors concept of the ghost girl slowly approaching. Bit by bit, Taeyeon comes toward the camera until finally greeting us with her big smile. Taeyeon posted, "Lonely? Tired? Having a hard time? Let Chin Chin Radio into your heart!" Netizens are in love with the photo with comments like "Taeyeon is too cute!" and "Please come into my heart too!" Chin Chin Radio airs during evenings on MBC FM4U.