Red Velvet performed at the concert, but Joy wasn't able to join the girl group due to her drama filming. On the August 4th installment of 'Knowing Brothers', the members expressed, "We were so thankful."
Yeri said, "We ate Okryu-gwan naengmyun. I asked for scissors, but they didn't have them. They said it was unfashionable," and Seulgi expressed, "We really worked hard eating. They prepared a whole table full."
Joy then said, "Because I felt so disappointed that I couldn't go to Pyongyang, I talked to the staff in a North Korean accent. The members were different when they came back. They seemed like they studied abroad."