Can i just asked why do you want to know?
It looks familiar but cant remember where I've seen it before sorry for that I'm no help. I've read and watch lots of mangas and animes so my brain is overloaded with info that i cant remember what from where. But the vest that the girl was wearing might be a clue. I reply soon if i remember but dont hope for it though i have bad memory. . .
sorry again. . .