1girl bangs bare_shoulders black_horns box breasts cleavage colored_skin curled_horns dress grey_dress grey_eyes grey_skin heart-shaped_box highres horns ill_(ub1mo) joints large_breasts long_hair long_tail looking_at_viewer mechanical_arms mechanical_legs original plunging_neckline robot_joints sideboob sitting smile solo stool tail ub1mo valentine white_hair