MBC's upcoming drama 'When I Was The Prettiest' has finally released its first behind-the-scenes video.

On August 4, a new video was released by MBC. Im Soo Hyang, Ji Soo, and Ha Seok Jin shared their thoughts about their first day of filming and made fans excited through their performance in the summery and refreshing scenes.

The first scene in the video shows Ji Soo riding a bike with his first love, played by Im Soo Hyang. The actors introduced themselves to the video footage. Ji Soo said that today is their first filming, and it is the scene where he brought Ye Ji to their home on a bike, and it was enjoyable.

After the filming, Soo Hyang climbed off the bike and joked that she thinks she can't be seen at all while Ji Soo catches his breath while doing a strenuous exercise.

In the interview, Soo Hyang revealed that she was so anxious and nervous, but the set made her feel comfortable. She also noted the beauty of filming in natural scenery.

As the pair walk together, Soo Hyang laughs and says, "Hwan says it hurts." In the interview, she said that she thought Hwan wouldn't be able to walk for three days.

Ji Soo insisted on the interview that he never felt tired at all; however, during their break from filming, the director said he already looked tired. Ji Soo admitted that his groin hurt a bit, making everybody laugh and said he's just fine on the interview.

Meanwhile, Ha Seok Jin expressed his thoughts on the first day of their filming. He said it felt like it wasn't their first day of the shoot because they could start with a sense of familiarity. He continued that the actors and the staff are enthusiastically filming that he wondered why he is not feeling nervous at all.

The production team said that with Ji Soo, Im Soo Hyang, and Ha Seok Jin as the cast, the set's atmosphere is excellent, and their chemistry together when they perform is the best.

'When I Was the Prettiest' is set to air on August 19, at 9:30 PM, KST.