Based on the webcomic series "Nae IDneun Gangnammiin" by Gi Maeng-Gi (published from April 8, 2016 to December 29, 2017) via comic.naver.com/webtoon.
The Korean term "Gangnam Beauty" is derogatory and refers to women who became beautiful by plastic surgery. "Gangnam" in the term refers to an area in Gangnam, Seoul which is famous for its many plastic surgery clinics.
"ID: Gangnam Beauty " takes over the JTBC's Friday & Saturday 23:00 time slot previously occupied by "Sketch" and followed by "The 3rd Charm" on September 28, 2018.
First script reading took place May 30, 2018 at JTBC building in Sangam, Seoul, South Korea.