U-IE reveals the secret to her perfect body of 172cm and 50kg! She also shares an incredible bodybuilder photo of her father and older sister!"

On the 13th, actors U-IE and Ha Jun, who played a couple in the hit weekend TV drama, appeared on the KBS 2TV Korean variety show "Problem Child in House". U-IE also generously revealed her muscular and sexy photos on the program and showing off the distinctive bodies of her sister and father.

In the program that day, U-IE revealed her fitness photos and said, "The woman next to me is my older sister. I wanted to see what it's like to have abs aside from a diet and only hard exercise!"

"My sister had postpartum depression, so we started exercising together. My sister had a swimming buddy and lost 10 kilograms in a month, I lost 6 kilograms."

At the time, U-IE was 172cm tall and weighed 50 kilograms. Kim Jong-kook predicted that her body fat percentage was in the single digits. U-IE said, "At that time, the body fat percentage in the photos was around 13% and 14%."

U-IE mentioned that she exercises with her father Kim Sung-gap said, "My father temporarily retired once and often went to Vietnam with my mom during his break. When my father exercised, I followed him to Vietnam and worked out for a month. It is different learning from a trainer, he is really cool."

Next, U-IE shared a photo taken with her father. U-IE said, "What's funny about this photo is that I was planning to take a selfie after a workout, but then my father suddenly stripped off his clothes and said, 'It's now' and took the picture. He still maintains that physique to this day," which drew lots of laughter from everyone present.