1girl, blindfold, choker, covered_eyes, facial_mark, fangs, fate/stay_night, fate_(series), forehead, forehead_mark, forked_tongue, greyscale, long_hair, long_tongue, medusa_(fate), medusa_(rider)_(fate), monochrome, oosawara_sadao, open_mouth, oral_invitation, simple_background, teeth, tongue, tongue_out, upper_body, upper_teeth_only