For my first surgery, I used septal cartilage, but my bulbous nose wasn't properly improved, so I got a revision surgery consultation.
It was nice that it was close to the station. It's near Exit 3 of Sinsa Station. There was a bit of a wait, and the clinic facilities looked a little old. The consultation time wasn't long, and it felt like they were roughly looking over things, so after the director's consultation, I was a little.... unsure. Still, they explained all the parts they needed to explain.
They said to replace it with 4 mm silicone and use donated costal cartilage and ear cartilage.