collaboration 6 multiple_girls 3 open_mouth 3 touhou 3 highres 3 2girls 2 blonde_hair 2 bottle 2 box 2 long_hair 2 ribbon 2 blue_eyes 2 short_hair 2 sitting 2 arsenixc 2 bookshelf 2 computer 2 desk 2 lamp 2 monitor 2 original 2 room 2 vvcephei 2 window 2 long_image 2