Rule 34 Dev - 1girl black_hairband black_jacket blue_pupils firefly_(honkai:_star_rail) from_side grey_hair hair_between_eyes hairband highres honkai:_star_rail honkai_(series) jacket kagaku_o long_hair long_sleeves looking_at_viewer open_mouth portrait purple_eyes shirt simple_background solo tucking_hair white_background white_shirt|24292014786