Kang Joon (played by Jung Kyuh Woon) realized the identity of Sara (played by Han Ye Seul).
On the episode of SBS weekend drama "Birth of a Beauty" broadcast on December 14th, Kang Joon realized that Sara was his ex-wife Geum Ran (played by Ha Jae Sook).
Chae Yeon (played by Wang Ji Hye) first got a sense of Sarah's identity. He kept giving hints to Kang Joon and made him have suspicions about Sarah. Here, Kang Joon saw fingerprints and remnants to see that Geum Ran was still alive. His suspicions for Sarah kept on growing.
Seeing this, Kang Joon remembered that in the past, Sarah had taken care of her grandma with Alzheimer's. To find this out, he researched the whereabouts of Sarah.
In the midst of all of this, Kang Joon went to meet Sarah who was preparing for a taping. Here, he saw that Sarah was singing the same song that Geum Ran had been singing in the past. For the first time, he thought that Sarah could be Geum Ran.
With all his suspicions, Kang Joon took samples of Sarah's hair secretly. He went and submitted it for a DNA test, which raised the tensions of the drama.
