Yoon Sang defended Joy's absence at the Pyeongyang concert.

Many netizens had been unhappy with Joy's absence from Red Velvet's North Korea concert to film her drama, citing reasons such as that Joy was an idol first, and that this was an important diplomatic performance. Yoon Sang, who is directing the concert, said, 

"It's true that we had a lot of difficulties because we had to make preparations in a short time. We predicted a lot of hardships from getting Red Velvet from the start, and as our concerns, they were not able to attend as a full group. However, the important thing is that all the members that are here are performing as one."

What do you think about Joy's absence from the North Korea concert?