SEE ALSO: 'Roommate' sees a rise in viewer ratings for its Christmas special this week

Youngji recently finished filming for mobile game 'Dot Arena', and had just as much energy as the characters in the game with her bright smile on set.

The trending idol shared through her agency DSP Entertainment rep on the 18th, "Since it's my first time ever that I filmed an advertisement, I was nervous but it was a happy experience. I was able to film with cool and diverse characters so it wasn't hard, and I really enjoyed it."

Meanwhile, KARA are busy preparing for the year-end ceremonies to come.