My ID Is Gangnam Beauty

This series tells the story of Kang Mi Rae, a girl once bullied for her looks. As a result, she became insecure, cautious around people and withdrawn. However, Mi Rae decides she wants a fresh start away from bullying and gets plastic surgery to transform her face. When she begins university, she meets Do Kyung Suk from their middle school days, who sees people for what they are on the inside and not the outside; he then becomes attracted to Kang Mi Rae.
As Mi Rae begins to get teased once more and labeled “Gangnam Beauty”, the cold, aloof but kind inside Kyung Suk becomes the one person that stands up for her and in the process, Mi Rae begins to recover her lost confidence and discovers that true beauty is not on the outside.

(Source: AJ at MyDramaList)

~~ Adapted from the webtoon “My ID is Gangnam Beauty” (내 ID는 강남미인!) by Gi Maeng Gi (기맹기).