What japanese festival that use a paper mask for there parade?

I was trying to search a picture from a long time ago about a festival in japan that the participan will wearing a traditional shinto priest clothing ( if my memory not rusty…), but for some reason they must equip a paper mask ( just a sheet of square paper covering there front face, with a sigil on it, again, if my memory was correct…) and i think the picture was taken on 2015 ( i think… ), if the detail is not helpfull enough, just picture this ” a onmyouji wearing a paper mask parade ? ”, but i can’t find it, so…can you help me ?