I saw an article saying that
 
the length of the nose was longer compared to before the surgery and that the columella was extended by the septum.
 It is impossible to extend the nasal septum with a pig nose, but Chaeyeon Jung has a pig nose? I heard she had a pig nose in a drama before... What is it? That's why I thought Chaeyeon Jeong was a natural. I wonder if there is a nose surgery that can lengthen the length and prolong the columella and still create a pig nose.