Excuse me, which TV series is this signature file from?
This is "Romantic Room 2" which just aired last week, starring Minwoo No, Huang Jingyin and Ki-wong Park.
They are an internal combination. Minwoo No is allergic to the material of the scarf, because he brought it and it is a little tight. Because of the performance, Ki-wong Park deliberately went up and kissed Minwoo No and took it off by the way ~