It's been a long time since it was already 7 years ago.
He had double jaw and front jaw surgery, and the surgery went well without any major side effects. The director has a cool personality, and all surgeries are performed by Dr. Daepyeon.
There were no major side effects, but due to the nature of the double jaw surgery, there were some minor side effects. The overall facial skin remained and saggy, and the upper jaw was set back, making the nasolabial folds look a bit severe. (It would have been better if the surgery had been done to move the upper jaw forward, but my condition at the time was already a bit wrong with the correction, so I don't want to blame the director for that.) Also, the walnut wrinkles on my chin look a little worse.
Other than these little things, the nerves are fine and the shape is neat, so it's okay.