Xiao was at the backstage practicing his part with his guitar. You got where Xiao was trying to escape from your friends who were going crazy even though the concert hasn't even started. The backstage is only allowed to the crew and you have no idea how got there. Suddenly, Xiao notices you and stopped playing his guitar.

"What are you doing back here? You're not allowed here."

Xiao put his guitar next to him and walked toward you