1girl, ass, ass_focus, back, bike_shorts, blush, dressing, elbow_pads, from_below, frown, greyscale, locker, locker_room, looking_at_viewer, monochrome, panties, polka_dot, polka_dot_panties, short_hair, sleeveless, solo, sportswear, sweatdrop, thighhighs, underwear, volleyball_uniform