Rule 34 Dev - 1girl arm_up armlet armpits bikini blush breasts choker closed_mouth greyscale hair_between_eyes hand_up highres jewelry kimoshi medium_breasts monochrome navel o-ring o-ring_choker pillow ponytail presenting_armpit smile solo sousou_no_frieren stomach swimsuit thigh_strap ubel_(sousou_no_frieren)|21916043487