• Park So Dam arrives for the opening ceremony of the 20th Busan International Film Festival (BIFF) on October 1, 2015 in Busan, South Korea.

Park So Dam arrives for the opening ceremony of the 20th Busan International Film Festival (BIFF) on October 1, 2015 in Busan, South Korea. (Photo : Getty Images/Chung Sung-Jun)

The tvN series "Cinderella and Four Knights" has recently released a set of photo stills to celebrate the drama's viewership ratings. The behind-the-scenes images include a look at the happy filming moments between Park So Dam, Ahn Jae Hyun and other cast members.

The romance comedy series "Cinderella and Four Knights" has reached an important milestone when it garnered a viewership share of 4 percent, according to allkpop. To commemorate the rating achievement, several pictures that displayed the cast members' happy and adorable sides have been released.

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One of the images posted on the same report includes Park and Ahn's cute couple picture. In the said photo, the two Korean celebrities posed beside each other while flashing a "V" sign with their fingers. The scene appears to be from the drama's earlier episodes where Ahn's character Hyun Min contracted Park's Ha Won to pretend to be his fiancé during a family event.

Avid viewers may recall that Park's character accepted the offer in an effort to raise money to settle years of unpaid fees at the columbarium where her mother's ashes were kept. On the other hand, Ahn's character is one of the three grandchildren of a rich old businessman.

Some of the recently released behind-the-scenes pictures even featured adorable shots of cast members Choi Min and CNBlue's Lee Jung Shin. The two actors were photographed wearing party hats and colorful "Happy Birthday" eyeglasses. Another image also showed A Pink group member Son Na Eun holding a blue fabric with lace accents in her arms while cast member Jung Il Woo flashed a peace sign towards the camera.

In other news, Park has been one of the Korean celebrities included in Variety's 2016 "Youth Impact Report," Soompi reported. The said list contains the names of celebrities who made an impact on today's youth through their work or achievements. The actress has been included in the list given her impressive performances in various movies and TV series that were released in 2016.

Some of these movies include "The Priests," "Veteran" and "The Throne." Park has also starred in the KBS medical drama "Beautiful Mind" alongside Jang Hyuk. The actress is also set to appear in the stage play "Closer."

Meanwhile, fans can see more of Park in upcoming episodes of "Cinderella and Four Knights." The drama airs every Friday and Saturday on tvN.

Watch the preview for the drama's upcoming seventh episode to be released on Sept. 2: