To become dual-wielding and natural

Approximately how long does it take??
 It's burdensome to make an incision because it's going to be noticeable when I close my eyes, and
 I want to do it with natural adhesion or burial if possible, but
 each hospital has different surgical methods, such as dermal adhesion, transparent adhesion, heat-sweat adhesion, 7-point 12-hole quick burial, etc., so
 I don't want to make it unravel.
 If you like the in-out line, which is the best? Is it better to do it??
 First of all, I have looked at three hospitals, Cheongdam Yu Secret The Way.
 I will designate Cheongdam Yu by Dr. Yang, but I have not yet designated two hospitals.
 I have had surgery here before. Please recommend it in the comments.