The production presentation was attended by cast members Kim Shin-young, Uee, Sunny and Choi Yoo-jung.
The event was held Online under the influence of Corona 19.
About Choi Yoo-jung
Choi Yoo-jung, known mononymously as Yoojung, is a South Korean singer, dancer, rapper and actress signed under Fantagio. She debuted as member of I.O.I in May 2016 after achieving third place in the 2016 survival program Produce 101.
 Wikipedia