Rule 34 Dev - 1boy 1girl blade cosplay dagger darker_than_black dress fang genshiken glasses greyscale hair_ribbon hei_(cosplay) hei_(darker_than_black) highres knife long_hair madarame_harunobu mask monochrome petite ponytail ribbon short_hair susanna_hopkins weapon yin_(cosplay) yin_(darker_than_black) zon_nura|3926684970