It's the place where they get ready before the concerts , before they go on stage, it's the place behind the actual stage "back stage".
I think he meant a few mangas that are not related have the back stage written on the cover. I'm wondering too...
Girl i know the meaning.....
Yeah i've seen it on the cover of like 3 manhwas, they don't even have the same author
oops sorry
they're probably all a part of the same collection of short manhwas revolving around the celebrity theme
What does back stage mean on the covers?#－.－)
I saw like 2 other covers with that