SOYOU (former SISTAR) makes a surprise appearance on ”Backpacker 2”... ”A guest like no other in history”

SOYOU (former SISTAR) made a surprise appearance. SOYOU's appearance was depicted on tvN's "Backpacker 2" broadcast on the 22nd.
On this day's broadcast, the members who gathered at Namsan received a mysterious ticket.
The note read "National Theater (Dal Orum)". The visiting team opened the car door to go to the visiting location, but SOYOU was inside the car. Everyone said that they were the super special support force for SOYOU's sortie.
Baek Jongwon was surprised and said, "He wasn't here before, so where did he come from?" Until now, the traveling party always had guests in the car, so every time they opened the car door,
While the production team was collecting the tickets, they had unknowingly put SOYOU in the car. Then, the team headed to the destination with SOYOU.
It was.