Choa, formerly of K-pop girl group AOA, revealed her identical older sister.
On March 9 episode of tvN's television show 'On & Off', Choa introduced the viewers to her older sister.
In this episode, Choa's older sister Park Se-ah was seen making a visit to Choa's new home in Seoul.
Choa excitedly welcomed her, and said, "Se-ah lives in Dangjin, Chungcheongnam-do where my parents also live. She got married about three months ago."
As the hosts saw Park Se-ah, they all gasped in surprise; saying how much they looked alike.
They looked so similar that they almost looked as if they were identical twins.
After Choa welcomed Park Se-ah to her house, the sisters sat down and watched videos from Park Se-ah's wedding ceremony.
While watching the videos, Choa could not hold back her tears.
She commented, "I tried my best not to cry on the day of your wedding ceremony. I didn't cry on that day, but I just can't help it now."
She continued, "I remember singing for you then. You asked me to sing a cheerful song, so I picked 'Pit-A-Pat' to sing for her and my brother-in-law."
Recently, Choa returned to the industry after leaving it due to depression in June 2017.
(Credit= tvN On & Off)